- Date of preparing……./…. - Period 13 +14
- Date of teaching ……/……
Conditional sentences
I- Conditional sentence type 1: câu điều kiện lọai 1) : có thể xảy ra ở hiện tại hay tương lai
If Clause (Mệnh Đề If) Main Clause (Mệnh Đề Chính)
Simple Present Tense(Thì Hiện Tại Đơn)
S + V(+s/es)
Simple Furure (Tương Lai Đơn)
S + will/shall / can + V_inf
Ex : 1. (we/not/go) …………………… out, if it(rain) ………………………………
2. If I (have) …………………. enough time , I (write)…………………… to my parents every
week
* Note : Nếu mệnh đề điều kiện ở dạng phủ định “If … not” ta có thể thay bằng “UNLESS”
(trừ phi), trong trường hợp này mệnh đề sau “UNLESS’ ln ở dạng khẳng định
Ex: - We will be late if we don’t hurry.  We will be late unless we hurry.
II-Conditional sentence type 2: câu điều kiện lọai 2: không có thật ở hiện tại hay tương lai
If Clause (Mệnh Đề If) Main Clause (Mệnh Đề Chính)
Simple Past Tense (Thì quá Khứ Đơn)
S + V(+ed/cột 2)
(be  were cho tất cả các ngôi)
S + Would + V_inf(động từ nguyên mẫu)
Ex : 1. I (write)…………………… to my parents If I (have)………………… enough time now
2. If Sally lived in Brighton, she (be)……………………………………………… near her parents
III- Conditional sentence type 3: câu điều kiện lọai 3: không có thật ở quá khứ
If Clause (Mệnh Đề If) Main Clause (Mệnh Đề Chính)
Past Perfect Tense(Thì Quá Khứ Hoàn Thành)
S + had + PP
S + Would Have + (+ed/cột3)
Ex : 1. I (write)…………… …………to my parents yesterday If I (have) ……….enough time.
2. If you (phone)…………………….me yesterday ,I (give)……………………….you the news.
Exercises

A. am B. were C. would be D. was
15) Jack will win the election if he harder.
A. will campaign B. would campaign C. campaigned D. campaigns
16) If that hat costs much, I_____ a small one.
A. would have bought B. will buy C. bought D. would buy
17) If you_____ more carefully, you wouldn’t have had so many accidents.
A. drive B. drove C. had driven D. driven
18) If I_____ that mistake again, my teacher will get angry with me.
A. make B. makes C. made D. had made
19) If I spoke English, my job_____ a lot easier.
A. was B. were C. will be D. would be
20) If he_____ to London yesterday, _____ his old friend.
A. went/would meet B. go/would meet
C. had gone / would have met D. went / would have met
21) I will lend them some money if they_____ me.
A. ask B. will ask C. asked D. had asked
22) If we had known who he was, we_____ him to speak at our meeting.
A. would have invited B. have invited C. will invite D. would invite
23) My dog will bark if it_____ any strange sound.
A. hear B. hears C. heard D. had heard
24) If I_____ enough money, I would buy a house.
A. had B. had had C. will have D. have
25) They_____ you in if you come late.
A. won’t let B. not let C. wouldn’t let D. hadn’t let
26) If you_____ away, I’ll send for a policeman.
A. not go B. don’t go C. hadn’t gone D. didn’t go
27) If I_____ in your place, I would accept Mr. Anderson’s invitation.
A. were B. am C. be D. was
28) If I_____ a big prize in a lottery, I’d give up my job.
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43) If you_____ so busy, I would have shown you how to play.
A. hadn’t been B. weren’t C. aren’t D. wouldn’t be
44) It_____ quicker if you use a computer.
A. will be B. would be C. were D. been
45) If we have some eggs, I_____ you a cake.
A. made B. makes C. will make D. would make
46, If he comes,………………
A. we would go to lunch. B. we will go to lunch. C. we went to lunch.
47.I would buy a new house ……………………………………….
A.if I have a lot of money. B. if I had a lot of money. C.If I win the lottery.
48. If she misses the bus,…………………………………
A.I will take her to school by car. B.I would take her to school by car. C.she had to walk.
49. If I had known you were in town,………………………………………………
A. I had bought you some flowers. C. I would have bought you some flowers.
B. I will buy you some flowers.
50. If he studies a lot,……………………………….
A. he would pass the exam. B.he would have passed the exam. C. he will pass the exam.
II. Choose the underlined part among A, B, C or D that needs correcting.
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1) If you were here yesterday, you would have seen Jean.
A B C D
2) We could had done more if we had had more time
A B C D
3) He said that if he has more time, he would come to see us.
A B C D
4. If you will study harder, you will surely pass the coming exams with good results.
A B C D
5. If I am 10 centimeter taller, I would play basketball.
A B C D
6. If I were you, I will go to the dentist’s and have the tooth checked.

B. If I had had enough money with me then, I would have bought that coat.
C. If I had enough money with me then, I wouldn’t buy that coat.
D. If I didn’t have enough money with me then, I wouldn’t buy that coat.
It’s raining and they can’t go camping in the mountain.
A. If it was raining, they could go camping in the mountain.
B. If it isn’t raining, they could go camping in the mountain.
C. If it wasn’t raining, they could go camping in the mountain.
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D. If it is raining, they could go camping in the mountain.
41) We_____ you if we have time.
A. will phone B. would phone C. phoned D. had phoned
42) It_____ be a pity if she married Fred.
A. will B. would C. can D. may
43) If I’m free on Saturday, I_____ to the mountains.
A. to go B. could go C. went D. can go
44) She_____ a nervous breakdown if she goes on like this.
A. will has B. had C. will have D. have
45) I know I’ll feel better if I_____ smoking.
A. will stop B. stopped C. stop D. had stopped
46) If I_____ you, I would help him.
A. am B. were C. will be D. had been
47) I could have understood him if he_____ more slowly.
A. speaks B. spoke C. had spoken D. would speak
48) He didn’t listen to the teacher. If he_____ carefully, he_____ well in the examination.
A. listens / will performed B. listened / would perform
C. had listened / would have performed D. had listened / had performed
49) He’s waiting for his mother to come back from Chicago. If his mother_____ home, he_____ a lot of
presents.
A. come / will has B. comes / will have C. will come / has D. came / had
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