Conditional sentences

Exercise 1: Put the verbs in brackets into the correct forms.
1. If I (have)...................time, I will write to him.
2. If it’s cold, I (need)........................a heavier coat.
3. What are you going to do if you (have)......................a holiday?
4. If I can go tomorrow, I (let)........................you know.
5. If I should meet Helen, I (give)........................her your message.
6. If flowers don’t get any water, they (die).............................
7. If I (get).....................a headache, I usually take some aspirins.
8. I will go to the party unless it (rain).........................
9. She will buy the car as long as it (not be).......................too expensive.
10. Everything (be).......................provided you tell the truth.
11. If he (come)........................., please tell him that I’ll be back in a few minutes.
12. Don’t come if they (not call)...................you.
13. If you (need)......................, why don’t you tell me?
14. Suppose you (win)........................a lot of money, what would you do?
15. If I got up earlier, I (not be)......................late for work.
16. If I didn’t feel so tired, I (go).....................out with you.
17. If you (not pass)................. the exam, would you take it again?
18. If I (be)................. you, I would apply for the job.
19. I could repair the car if I (have)....................the right tools.
20. If I (study).....................hard, I would have passed the exam.
21. If I (not be)......................busy yesterday, I would have visited you.
22. She (go)........................to the university if she had had the opportunity.
23. Suppose they had offered her a job, do you think she (take).....................it?
24. If she hadn’t been ill yesterday, she (go)..........................to work now.
25. If I (be)..................you, I wouldn’t have told him the truth yesterday.
26. If today were Monday, I (not go)..........................to work yesterday.
27. What would happen if you (not go)........................to work tomorrow.
28. If I had gone to yoour party last night, I (be)...................very tired now.

7. If John had played for our football team, we would not have lost the game.
----> Unless....................................................................................................
8. If I won a big prize in a lottery, I’d give up my job.
----> Unless....................................................................................................
9. If you don’t like this one, I’ll bring you another.
----> Unless....................................................................................................
10. I’ll only help you if you promise to try harder.
----> Unless....................................................................................................
11. If she doesn’t work harder, she’ll lose her job.
----> She’ll.....................................................................................................
12. You can use my car, but have to keep it carefully.
----> Provided................................................................................................
13. If the work is finished by lunch , you can go home.
----> Get.........................................................................................................
14. Keeping calm is the secret of passing your driving test.
----> As long as..............................................................................................
15.You must work harder or you won’t pass the exam.
----> You won’t..............................................................................................
16. She must apologise to me or I’ll never speak to her again.
----> I’ll.........................................................................................................

Exercise 4: Rewrite these sentences, beginning as shown, so that the meaning stays the same.
1. I didn’t have an umbrella with me and so I got wet.
----> I wouldn’t..............................................................................................
2. I’ll call the police if you don’t leave me alone.
----> Unless......................................................................................................
3. In the snowy weather we don’t go to school.
----> If..............................................................................................................
4. Without Jack’s help, I wouldn’t have been able to move the table.
----> If..............................................................................................................

----> If it hadn’t.................................................................................................
20. Dick is in prison because a detective recognised him.
----> If a detective.............................................................................................
Exercise 6: choose the best answer.
1. I didn’t have an umbrella with me, so I got wet.
A. If I had had an umbrella, I wouldn’t have got wet. B. If I had had an umbrella, I wouldn’t have got wet
C. If I had had an umbrella, I wouldn’t get wet. D. If I had had an umbrella, I would get wet
2. ……………. we find new sources, we will soon run out of energy.
A. If B. When C. Unless D. Only
3. If I had millions of dollars, I would ………….. all over the world.
A. be travelled B. travelling C. travel D. to travel
4. If you work hard, you will eventually .................
A. succeed B. successful C. successfully D. success
5. “Will you come to the party tomorrow?” – “I will if I................no visitors “
A. have B. will have C. had D. am having
6. If it ………….. too cold, we could go on a picnic.
A. isn’t B. wouldn’t be C. weren’t D. wouldn’t be
7. If you were not sick, ………….. with us?
A. will you come B. would you come C. do you come D. are you coming
8. If I were you, I would persuade him ………….. the new treatment.
A. to try B. trying C. tries D. try
9. If gravity, the pull of the earth, is zero, everything .................
A. will float B. would be floating C. floated D. would float
10. If an object is let off in the cabin of a spaceship, it …………….
A. floated B. is floating C. will float D. would float
11. We would save thousands of lives if ................. the remedy for the flu.
A. we find out B. we found
C. we will find D. we had not found out
12. If I ………….. you, I would gho to bed earlier at night.
A. be B. am C. had been D. were

28. If the doctors could find in the remedy, a lot of people would be saved.
A B C D
29. If he bought that house now, she ran out of money.
A B C D
30. If he weren’t too old, he would apply to the job as a war reporter.
A B C D
31. What you would do if you could speak French well?
A B C D
32. If I had money, I will buy a car.
A B C D
33. If we don’t stop to destroy forests, soon there will be no forest left on the earth.
A B C D
34. If we will reduce the speed of population growth, there will be less presure on the earth.
A B C D
35. If we do nothing for preserve their habitat, some species will become extinct.
A B C D
36. Unless we leave a bowl of water under the sun, it will evaporate.
A B C D
37. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis.
A B C D
38. Men will continue to live on foods unless other types of protein are not found.
A B C D
39.
If there isn t enough rain, the hydropower station can not operate.’
A. When there isn’t enough rain, the hydropower station can operate.
B. Unless there is enough rain, the hydropower station can operate.
C. Unless there isn’t enough rain, the hydropower station can not operate.
D. Unless there is enough rain, the hydropower station can’t operate.
40.
If we can t prevent it in advance, the hurrican will destroy the coastal towns.’

C. If it wasn’t raining, they could go camping in the mountain.
D. If it is raining, they could go camping in the mountain.