Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
Unit 1 HOME LIFE
Choose the word whose underlined part is pronounced differently from that of the others.
1. A. toys B. bats C. doors D. bags
2. A. sentences B. houses C. dates D. oranges
3. A. beliefs B. keeps C. enjoys D. pets
4. A. systems B. ideas C. prepares D. breaks
5. A. airports B. examples C. brothers D. friends
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
6. The little girl is crying because she _______________ her doll.
A. has lost B. had lost C. was losing D. was lost
7. We ____________ out yesterday because it _____________ at that time.
A. hadn’t gone – was raining B. didn’t go – rained
C. didn’t go – was raining D. didn’t go – had been
8. Nam has studied English since he _______________ 5 years old.
A. is B. was C. has been D. were
9. Mr. Gibbon usually drinks mineral water, but last night he __________ champagne.
A. drinks B. has drunk C. is drinking D. drank
10. Since the end of the 20
th
century, English ______ the most widely used language
around the world.
A. has become B. became C. becomes D. had become
11. _______________ my key anywhere? I can’t find it.
A. Did you see B. Have you seen C. Will you see D. Do you see
12. When Mr. Lam came, we _______________ the room.
A. cleaned B. was cleaning C. were cleaning D. clean
13. I’m sorry I _______________ to you for a long time.
A. didn’t write B. haven’t written C. hadn’t written D. don’t write
14. What ______________ when I called you?

Helen: Well, every morning I get up at 6:00 a.m. Then I brush my teeth and have
breakfast. At 6:30, I go to school. I come back home at 5:00 p.m.
Daniel: Really ? Who (27)_______________ the household chores in your family?
Helen: My mother usually (28)_______________ the household chores
Daniel: And who works in your family?
Helen: Both my (29)_______________ work
Daniel: What interest does your family (30)_______________closely?
Helen: The interest we share closely is watching TV.
26. A. How B. What C. Where D. When
27. A. is B. are C. do D. does
28. A. makes B. make C. does D. do
29. A. parents B. sister C. friends D. brother
30. A. shares B. share C. works D. work
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
Unit 2 CULTURAL DIVERSITY
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
1. Marriage should be an equal _________________.
A. partnership B. belief C. trust D. concept
2. She _______________ her career to bring up the children.
A. confided B. obliged C. determined D. sacrificed
3. A survey _____________ last year found 80% of the public in favor of the change.
A. was carried out B. carried out C. was conducted D. done
4. In my hometown, many people still believe in _____ marriage or arranged marriage.
A. romantic B. obliged C. contractual D. sacrificed
5. Nowadays many young lovers believe that love _____ marriage but not follows it.
A. comes B. precedes C. advances D. proceeds
Choose the word whose underlined part is pronounced differently from that of the
others.

Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
Choose the phrase or sentence A, B, C, or D that best completes each situation.
21. – “_______________ a happy marriage should be based on love.”
- “ I definitely agree !”
A. I really know B. Do you think C. Personally, I think D. As I see it
22. – “It seems to me that spring is the most beautiful time of year. “
– “_______________ . It is really lovely ! “
A. You’re exactly right! B. You could be right.
C. You’re dead wrong. D. I couldn’t agree less.
23. – “_______________ children nowadays watch TV too much.”
– “ Absolutely ! “
A. In my conclusion, B. As a matter of fact,
C. To me, D. In my opinion,
24. – “ Are you going to visit Britain next month ?”
– “ Yes, _______________.”
A. I am B. I do C. I like D. I can
25. – “ What do you usually do on Sundays ? ”
– “_______________.”
A. I used to drive to work B. I’d be sleeping all day
C. I’m not doing anything D. I usually sleep until noon
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that
needs correction.
26. In my opinion, I think a happy marriage should be based on love.
A B C D
27. They also agree that a wife should maintain her beautiful and appearance after
marriage. A B C
D
28. Steve wakes up early every morning because he went to work early.
A B C D
29. The Americans are much concerned than the Indians and the Chinese with physical

11. The mother told her son _______________ so impolitely.
A. not behaving B. not to behave C. did not behave D. not behave
12. She said she _______________collect it for me after work.
A. would B. did C. will D. had
13. He asked me where I _________________.
A. have studied B. study C. am studying D. studied
14. Small children are often told that it is rude to point _______________ other people.
A. for B. at C. on D. to
15. Peter said that he had lived in London four years _______________ .
A. then B. ago C. before D. later
16. John asked me _______________ in English.
A. what does this word mean B. what that word means
C. what did this word mean D. what that word meant
17. The host asked her _______________ tea or coffee.
A. whether she liked B. that she liked
C. if she likes D. whether she like
18. My friend asked me who _______________ the piano in the sitting room.
A. was playing B. plays C. is playing D. has played
19. The teacher told his students _______________ laughing.
A. would stop B. to stop C. stop D. stopped
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
20. Mary asked me ________________.
A. whether I would watch the football match on TV the day before.
B. whether I watched the football match on TV the day before.
C. If I had watch the football match on TV the day before.
D. whether I had watched the football match on TV the day before.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
21. – “How well you are playing!”

Choose the word whose underlined part is pronounced differently from that of the others.
1. A. prepared B. stopped C. opened D. played
2. A. needed B. wanted C. checked D. tested
3. A. mended B. asked C. watched D. rushed
4. A. cats B. kids C. keys D. bags
5. A. gives B. thanks C. stops D. visits
6. A. repairs B. listens C. studies D. suggests
Choose the word which has a different stress pattern from that of the other three.
7. A. instance B. students C. signal D. cartoon
8. A. motorbike B. importance C. discussion D. relation
9. A. confident B. different C. romantic D. physical
10. A. parents B. wedding C. schedule D. police
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
11. The ______of the four values suggests that young Asian are not as romantic as their
American counterparts.
A. compare B. comparison C. comparative D. compared
12. We shouldn’t evaluate anyone through his _______________.
A. appear B. appearance C. appearing D. appeared
13. I think it is a good idea _______________ a party tonight.
A. have B. has C. having D. to have
14. There are differences and ___________ between Vietnamese and American culture.
A. similar B. similarly C. similarity D. similarities
15. We have to pay _______________ to what our parents taught last night.
A. mind B. attention C. notice D. thought
16. Some people are concerned with physical _____ when choosing a wife or a husband.
A. attract B. attraction C. attractiveness D. attractively
17. In our life, we sometimes _______________ what we have for our friends.
A. sacrifice B. determine C. apologize D. thank
18. I think it is _______________ to ask someone’s age.

A. played B. play C. were playing D. had played
31. Their parents never let them _______________ out in the evening.
A. go B. to go C. going D. gone
32. Would you mind _______________ me a hand with this bag?
A. give B. giving C. to give D. to giving
33. Tom asked me _______________ .
A. if was I having a good time last weekend
B. whether I had had a good time last weekend
C. if would I have a good time last weekend
D. whether I have had a good time last weekend
34. Do you know where _______________ ?
A. he lives B. did he live C. does he live D. he live
35. Unlike most men, he _______________ cooking.
A. takes B. decides C. enjoys D. suggests
Read the following passage and mark the letter A, B, C, or D on your answer sheet to
indicate the correct word for each of the blanks from 36 to 40.
We can communicate not only through words (36)_______ through body language.
Body language includes our posture, facial expressions, and gestures. Because body
language is so important, you’ll want (37)______what yours is saying and how to interpret
other people’s, too. Here are some examples of body language and its meaning. If your
posture is slumped and your head is down, this could mean that you are sad or you lack
(38)______. If your posture is straight but relaxed, you are expressing confidence and
friendliness. A smile is a sign of friendliness and interest. But people sometimes smile just
to be polite. Friendliness and interest are expressed when a person’s eyes meet yours and
then look away and meet yours again. A person (39)_____ doesn’t look away is expressing
a challenge. Hand gestures can mean a person is (40)_______ in the conversation.
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
36. A. and also B. but also C. and so D. but so
37. A. knowing B. know C. to knowing D. to know

46. He never goes home before he will finish his work.
A B C D
47. You have to studying hard to keep pace with your classmates.
A B C D
48. My mother said me to sit down at the table and do my homework.
A B C D
49. I'd rather to stay at home than go out at weekends.
A B C D
50. They asked me what did happen last night, but I was unable to tell them.
A B C D
Unit 4 SCHOOL EDUCATION SYSTEM
Choose the word which is stressed differently from the rest.
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
1. A. general B. application C. usually D. children
2. A. parallel B. library C. educate D. dependent
3. A. physical B. government C. achievement D. national
4. A. eleven B. history C. nursery D. different
5. A. consider B. similar C. actually D. carefully
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
6. This company _________ in this town a long time ago. Now it is one of the biggest.
A. was founded B. has been founded C. will be founded D. is founded
7. Names of the brilliant scholars used to be __________ on stone stelae in Van Mieu.
A. written B. memorialized C. kept D. engraved
8. “What a beautiful dress you are wearing!’’
“Thank you. It _______________ especially for me by a French tailor”.
A. is made B. has made C. made D. make
9. “Diana is a wonderful ballet dancer.”
“She _______________ how to dance since she was four.”

A. core B. part C. center D. middle
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that
needs correction.
21. Each term is separating by a one-week break.
A B C D
22. A new primary school has just built in this village.
A B C D
23. The new book consists of more than ten chapter.
A B C D
24. The children aged from 11 to 16 can go study there.
A B C D
25. They have been translated Shakespeare’s tragedies into many languages.
A B C D
Read the following passage and mark the letter A, B, C, or D on your answer sheet to
indicate the correct word for each of the blanks from 26 to 30.
Children in (26)_______ Netherlands must be at least four years old to (27)______
primary education. Almost all 4 – years – old (99.3%) in the country in - deed attend
primary school, (28)_______ this is not compulsory until children reach the aged
(29)______ 5. Primary school is free of charge. In most schools, children are grouped by
(30)________ in mixed ability classes, with one teacher of all subjects.
26. A. a B. an C. the D. its
27. A. afford B. enter C. come D. go
28. A. although B. despite C. in spite D. due to
29. A. of B. on C. in D. for
30. A. old B. elderly C. aging D. age
Unit 5 HIGHER EDUCATION
Choose the one option (A, B, C, or D) that does not have the same stress pattern.
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
1. A. curriculum B. competition C. compulsory D. certificate

8. The word “reformers” in the passage mostly means _______________.
A. people who work for the government
B. people who really enjoy teaching
C. people who try to change things for the better
D. people who believe that education is wasted
9. From 1837 to 1848, Horace Mann _______________.
A. worked as a headmaster in a school in the state of Massachusetts
B. raised money for the educational development in Massachusetts
C. funded many projects to improve the educational system for Americans
D. managed education in the state of Massachusetts
10. According to the passage, which sentence is NOT TRUE?
A. Horace Mann began raising teachers’ salaries.
B. Horace Mann suggested schools prepare children for their life’s work.
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
C. Horace Mann brought about changes in many schools in the United States.
D. Horace Mann was a famous US educational reformer.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to
indicate the correct word for each of the blanks from 11 to 15.
Around the age of sixteen, you must make one of the biggest decisions of your life.
“Do I stay on at school and hopefully go on to university (11)________? Do I leave and
start work or begin a training (12)_______?” The decision is yours, but it may be worth
remembering two things: there is more unemployment (13)_____ those who haven’t been
to university, and people who have the right skills will have a big advantage in the
competition for jobs. If you decide to go straight into a job, there are many opportunities
(14)_______training. Getting qualifications will help you to get on more quickly in many
careers, and evening classes allow you to learn (15)______ you earn. Starting work and
taking a break to study when you are older is another possibility. In this way, you can save
up money for your student days, as well as getting practical work experience.
11. A. former B. past C. later D. after

D. we had attempted to pass the GCSE exam.
24. A person _______________ is a lecturer.
A. whom teaches at a university B. that studies at a university
C. who teaches at a university D. who studies at a university
25. If Susan had worked harder, she _______________.
A. wouldn't be sacked B. wouldn't sack
C. wouldn't have been sacked D. wouldn't have sacked
26. We will be late ____________________ we hurry.
A. despite B. if C. unless D. because
27. What would you do if you ____________________ a wallet in the street ?
A. found B. have been found C. had found D. find
28. If I had known you were in hospital, I _____________ to see you.
A. will go B. would have gone C. went D. would go
29. _______________ summer comes, we will go on an excursion to Ha Long Bay.
A. If B. Unless C. When D. Because
30. If it’s a nice day tomorrow, we _______________ swimming.
A. will go B. would have gone C. would go D. go
31. If I had taken an aspirin, I _____________ a headache now.
A. won’t have B. wouldn’t have had C. wouldn’t have D. don’t have
32. I wish it _______________ Sunday today.
A. were B. is C. will be D. has been
33. If you heat water to 100 degrees, it _______________.
A. boil B. boiled C. would boil D. boils
34. _______________ ten minutes earlier, you would have got a better seat.
A. Had you arrived B. If you hadn’t arrived
C. Were you arrived D. If you arrived
35. We will go camping _______________ we get good weather.
A. unless B. provided that C. so that D. although
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that
needs correction.

7. Scientists are researching the causes of cancer are making progress.
A B C D
8. His new motorbike, to which he paid much, has already had to be repaired.
A B C D
9. The organization that is very necessary for volunteers who will go to work.
A B C D
10. She went back, unlocked the door, turn on the lights and looked around the room.
A B C D
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
11. I received a letter this morning, _______________really upset me.
A. who B. which C. whom D. that
12. Toby, a boy_______________ I went to school with, is ill in hospital.
A. whom B. which C. in which D. whose
13. He is going to have an operation _______________ could save his life.
A. who B. whom C. which D. whose
14. Jane, ______________ parents both died a few years ago, is the same age as me.
A. who B. whom C. whose D. that
15. I recently went back to the town _______________ I was born.
A. who B. whose C. whom D. where
16. The people _______________ used to live next door moved a long time ago.
A. whom B. who C. which D. where
17. I saw a girl _______________ I you used to go out with.
A. whom B. that C. whose D. which
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
18. She told me a story_______________ I found hard to believe.
A. that B. which C. who D. whom
19. She said she had met the actor _______________ won the Oscar prize in 1998.
A. which B. whom C. whose D. that

“_______________ .”
A. Yes ,I think of that B. Yes, it is
C. Yes, I think that D. Yes, I think so.
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
Unit 7 - Economic Reforms
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
1. The control of _______ has been carried out through measures rooted in monetarism.
A. inflate B. inflationist C. inflation D. inflator
2. Economic reforms began in the Soviet Union in June 1985 by the Soviet leader
Mikhail Gorbachev to _______________ the Soviet economy.
A. repair B. reproduce C. restructure D. reply
3. After more than a decade of Doi Moi or economic _____, the Vietnamese Communist
government has achieved diplomatic and economic links with numerous foreign
partners.
A. relation B. investment C. productivity D. renovation
4. After a decade of economic liberalization, Vietnam has seen a dramatic rise in living
_________ in urban areas.
A. surface B. standards C. levels D. backgrounds
5. A ________ is money that is paid by a government or other authority in order to help
an industry or business, or to pay for a public service.
A. capital B. subsidy C. investment D. salary
Mark the letter A, B, C, or D to indicate the word which is stressed differently from that
of the rest in each of the following questions.
6. A. develop B. overall C. commitment D. investment
7. A. adopt B. export C. guideline D. money
8. A. economy B. experience C. relationship D. renovation
9. A. production B. consumer C. business D. domestic
10. A. achievement B. communist C. constantly D. government

transportation center. Singapore has many banks, insurance, and finance companies, as
well as a stock exchange. Tourism is also important (22)______ the economy of
Singapore.
There is (23)___ unemployment in Singapore. The country’s annual income per
capita (per person) is one of the highest in Asia. The government of Singapore plays a
major role in the country’s economy. For example, it decides what benefits, such as
vacation time and sick leave, must be (24)___ for workers by employers. It also operates
an employment agency to help people find jobs, and it provides (25)__ for retired workers.
21. A. then B. that C. there D. those
22. A. on B. with C. for D. to
23. A. few B. little C. a little D. a few
24. A. provided B. given C. offered D. handed
25. A. wages B. fees C. earnings D. pensions
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that
needs correction.
26. Although his bad cough, he kept on smoking.
A B C D
27. Although I try hard to play the guitar, but I do not seem to improve.
A B C D
28. Economic reform usually refers to actions of the government to improve efficiency
A B C
in economy markets.
D
29. The term economic reform refers to policies directing by the government
A B
to achieve improvements in economic efficiency.
C D
30. I just had to take the dog out despite of the awful weather this morning.
A B C D
18

14. I can’t believe _______________ what you say any more.
A. about B. to C. at D. in
15. _______________ Monday, Jim often goes to school by bus.
A. With B. In C. On D. Of
16. Football is _______________ most popular sport in the world.
A. a B. an C. the D. its
17. John has just opened ___________ new shop. __________ shop is very big.
A. the / The B. a / A C. a / An D. a / The
18. Mary has no raincoat but she has ________________ umbrella in her bag.
A. some B. the C. a D. an
19. Isaac Newton was famous for ________________ his gravity theory.
A. the B. a C. an D. this
20. Did you read _______________ book I lent you yesterday ?
A. the B. a C. an D. no article
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
Read the following passage and mark the letter A, B, C, or D on your answer sheet to
indicate the correct word for each of the blanks from 21 to 25.
What will the city of the future look (21)______? The question has been asked so
many times over the last 500 years. No one can predict (22)______ how cities will be 50 or
500 years from now.
The reason (23)______ simple. Cities change continually. For over fifty years, they
have changed (24)______ rapidly that the oldest resident will remember the time
(25)______ their city seemed to belong not just to another era but to a different dimension.
21. A. like B. liked C. likely D .likes
22. A. accuracy B. accurate C. accurately D. the accuracy
23. A. was B. is C. will be D. has been
24. A. so B. such C. very D. really
25. A. because B. though C. as D. when
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that

of the following questions.
11. We have to stop soon because the car runs _______________ petrol.
A. out off B. out of C. away D. down
12. Our kitchen is too small. We need to _______________ it.
A. expand B. increase C. improve D. reform
13. A _______________ is a long period without any rain.
A. drought B. famine C. starvation D. flood
14. Since Doi Moi, our country has_______substantial changes in productivity and
agricultural exports.
A. under-developed B. undergone C. happened D. increased
15. The _______________ doors opened as she approached.
A. automatic B. automatism C. automatically D. automation
16. India’s _______________ growth rate has been more than twice that of China.
A. pollution B. popularity C. population D. opportunity
17. Computers and telecommunication have a huge _____ on various aspects of our lives.
A. development B. contribution C. invention D. influence
18. Domestic chores will no longer be a burden thanks to the inventions of ____ devices.
A. safe B. different C. labor-saving D. fast
19. One of the most important measures to be taken to promote the development of a
country is to constantly carry out economic ______________.
A. reforms B. developments C. achievements D. investments
20. _______________ believe that life will be far better that it is today.
A. optimists B. pessimists C. pessimism D. optimism
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the
following questions.
21. Washington is __________ capital of ____________ United States.
A. the / the B. a / the C. the / no article D. the / an
22. I need ___________ time to think about ___________ offer you gave me.
A. the / no article B. an /no article C. no article / the D. a / a
23. David learned to play _______________ violin when he was at university.

A. I like your house. It has a nice view. B. What does your house cost?
C. Who designed this beautiful house? D. What do you think about it?
Mark the letter A, B, C, or D to show the underlined part that needs correction.
36. In the end of the book, they get married and live happily.
A B C D
37. The Prime Minister warned the people many times on the radio with the drug.
A B C D
38. Is that a present Bill gave you for Christmas?
A B C D
39. Although the heavy rain, my students are still planting trees to celebrate Teacher’s
Day. A B C D
40. He is not well paid despite he has a very important job.
A B C D
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate
the correct word for each of the blanks from 41 to 45.
Poor farmers use the (41)___ land over and over. The land needs a rest (42)______ it
will be better next year. However, the farmers must have food this year. Poor people cut
(43)______trees for firewood. In some areas, when trees are gone, the land (44)_______
desert. However, people need wood to cook their food now. Poor people can’t save the
environment for the future.
This is not a problem for one country or one area of the world. It is a problem for
humans. The people and the nations of the world must work together to save the world's
(45)_______.
41. A. similar B. same C. alike D. identical
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
42. A. because B. if C. when D. so that
43. A. down B. of C. out D. into
44. A. turns B. seems C. becomes D. grows
45. A. resource B. resources C. treasure D. treasures

C. become scientists D. do funny jobs
50. In the passage, the writer wants to tell us that _______________.
A. robots are stronger and cleverer than humans
B. disabled people cannot look after themselves without the robots
C. robots will take the place of humans some day in the future
D. robots can help humans in many different ways.
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Tài liệu ôn tập tiếng Anh lớp 12 (2010-2011)
Unit 9 DESERTS
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each
of the following questions.
1. In the desert, trees and plants are rare, but each __________ or bush gives food and
shade to wildlife.
A. cacti B. banana tree C. cactus D. orange tree
2. When the trees are gone, the smaller plants die and the land becomes __________ .
A. pasture B. plain C. waste D. desert
3. Because of the arid land and dry climate, not many kinds of trees and animals
_______ in a desert.
A. exist B. plant C. see D. raise
4. _______________ are very well-adapted to living in the desert.
A. Horses B. Camels C. Crocodiles D. Bears
5. Many people died of sandstorms when travelling _______________ this desert.
A. into B. over C. across D. through
Mark the letter A, B, C, or D to indicate the word which is stressed differently from that
of the rest in each of the following questions.
6. A. expedition B. geographical C. Aborigine D. Australian
7. A. eastward B. western C. between D. circle
8. A. enormous B. corridor C. crocodile D. northerly
9. A. animals B. banana C. spinifex D. tableland
10. A. survey B. remained C. mystery D. across

A. Oh dear! What a pity! B. Never mind. You can use mine
C. So do I D. I do, too.
23. - A: “Do you want to help?” - B: “_________________.”
A. Not at all B. I hope not
C. No, thanks. It’s all right D. Yes, that’s right
24. - A: “Could you repeat that, please?” - B: “ _________________”
A. Yes, of course B. Oh dear! C. Fine, thanks D. Never mind
25. A: “ This week’s gone so quickly. This is my last evening here.”
B: “ _________________”
A. Is it? That’s too bad. B. Do you? What a pity!
C. It’s a pity you can’t stay longer. D. What a pity for this last evening.
Mark the letter A, B, C, or D on your answer sheet to show the underlined part that
needs correction.
26. Neither plants or animals can survive for very long without water, a necessary
A B
resource that supports all life forms.
C D
27. Camels, they are the most popular desert animals, can be found in all deserts.
A B C D
28. It is said that in the deserts it’s very hot in the day time since it’s very cold at night.
A B C D
29. Hundreds of species of Hawaiian flowers have become extinct or rare because land
A B C
development and the grazing of wild goats.
D
30. My friend and I were tired, however we went home early.
A B C D

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