1 If I see him I (give) him a lift.
2 The table will collapse if you (stand) on it.
3 If he (eat) all that he will be ill.
4 If I find your passport I (telephone) you at once.
5 The police (arrest) him if they catch him.
6 If he (read) in bad light he will ruin his eyes.
7 Someone (steal) your car if you leave it unlocked.
8 What will happen if my parachute (not open)?
9 If he (wash) my car I'll give him £10.
10 If she (need) a radio she can borrow mine.
11. If you (not go) away I'll send for the police.
12. I'll be very angry if he (make) any more mistakes.
13. If he (be) late we'll go without him.
14. She will be absolutely furious if she (hear) about this.
15. If you put on the kettle I (make) the tea.
16. If you give my dog a bone he (bury) it an once.
17. If we leave the car here it (not be) in abybod's way.
18. He'll be late for the train if he (not start) at once.
19. If you come late they (not let) you in.
20. If he (go) on telling lies nobody will believe a world he says.
21. Unless he (sell) more he won't get much commission.
22. If I lend you Ł10 when you (repary) me?
23. We'll have to move upstairs if the rivier (rise) any higher.
24. If he (work) hard today can he have a holiday tomorrow?
25. Ice (turn) to water if heat it.
26. If the house (burn) down we can claim compensation.
27. If you (not like) this one I'll bring you another.
28. Unless you are more careful you (have) an accident.
29. Tell him to ring me up iy you (see) him.
30. If I tell you a secret, you (promise) not to tell it to anyone else?
31. If you (not believe) what I say, ask your mother.
32. If he (like) the house will he buy it?
33. If you will kindly sit down I (make) enquiries for you.
34. Unless I have a quiet room I (not be able) to do any work.
35. She won't open the door unless she (know) who it is.
36. Should you require anything else please (ring) the bell for the attendant
Câu If:
1) My mother buys that car for him. He will be happy.
--> If my mother buys that car for him,he will be happy
2) They don't buy that car because it is so expensive.
--> If that car weren't so expensive ,they would buy it
3) Mary is lazy, so she doesn't pass her exam.
--> If Mary weren't lazy ,he would pass her exam
4) The weather is very cold, and we won't take a bath.
--> If the weather weren't very cold,we would take a bath
5) She is so busy and she doesn't have dinner.
--> If she weren't so busy ,she would have dinner
6) Our teacher doesn't come to class because he does something.
--> If our teacher didn't do sth,she would come to class
7) I don't enjoy the film because it is not exciting.
--> If the film were exciting,i would enjoy it
8) Because they come here late, they don't see Mr. John.
--> If they didn't come here late,they would see mr.john
9) My sister finishes the test easily because she is very intelligent.
--> If my sister weren't very intelligent ,she wouldn't finish the test easily
10) My father is busy and he never watches TV.
--> If my father weren't busy,he would watch TV
11) Go out or you will be bitten.
--> If you don't go out,you will be bitten
12) Don't be late or you fail in the exam.
--> If you are late,you will fail in the exam
13) You won't win because he doesn't advised you.
--> If he advised you,you would win
14) Mary stays at home because she is sick.
--> If Mary weren't sick,she wouldn't stay at home