1.       We’ll have a nap after lunch. We’ll be sleepy.

-          If we have a nap after lunch, we will not be sleepy.

2.      I won’t know his phone number. I won’t be able to give him a ring.

-          If I know his phone number, I will be able to give him a ring.

3.      Don’t tell your parents. They will be surprised.

-          If I do not tell your parents, they will be surprised.

4.      We won’t help you. We won’t have enough time.

-          If we help you, we will have enough time.

5.      Take up this course. You will like it.

6.      Submit the report on time.  You will certainly fail.

A/ Put   the verb into the correct form: 

1. If  I ............ his number, I would phone him ( know) 

2. I ..................that coat if I were you.( not /buy) 

3. I ....................... you if I could ,but I’m afraid I can’t.( help)

4.We would need a car if we .....................in the country( live) 

5. I think there are too many cars. If there ...........................so many cars (not/ be), there ...............so much pollution . ( not/ be) 

6. If we ................(run out ) of oil, we ...................(need) other kinds of energy .

7. Pollution ....................( increase) if we ................( use) more oil and coal. 

8. If we ...................(try) to control pollution,it .......................(be) too late. 

9. The climate ...............(change) if more trees ..........(die) 

10. I didn’t know you were in hospital. if I ....................(know) , I ......................... ( go) to visit you. 

11. Ken got to the station in time to catch his train.If................................... ( he /miss) it, .............................( he/ be ) late for his interview. 

12.  I  wasn’t tired last night.If....................... (I/be) tired,I would have gone home earlier.

13.I took a taxi to the hotel but the traffic was very bad....................................................( it/be) quicker if .................................( I/walk)

1.     If I (know) .............. his phone number, I would call him.

2.     I (not buy) .............. this coat if I were you.

3.     If she (come) ................ late again, she’ll lose her job.

4.     I (help)  you if I could, but I’m afraid I can’t.

5.     If I (have) wings, I (not, have to) … … ... take an airplane to fly home.

6.     We would need less money if we (live)................................ in the country.

7.     If it (be).............................. fine tomorrow, we will go to the coast.

8.     We (phone)............................... you if we have time.

9.     If it didn’t rain, I (come)...................................... to see you.

10. I(drive).................................... to work if I had a car.

11. Where in Vietnam would you like to live if you (can)................................ choose?

12. If the weather (be)........................... good, we will have lunch outside.

13. If the company offers me a job, I think I (take)................................... it.

14. Many people would be unemployed if that factory (close).......................................... down.

15. If you finish before 4:30, I (come)............................. and pick you up.

16. If you (come)                          home on time, we’ll have dinner together.

17. I (go)                              to the movies with you if I finish my homework early.

18.   If he (learn)                         how to swim, he can go with us to the beach. 19. You (feel)                          tired tomorrow if you stay up very late tonight. 20. If the weather (not, be)                          cold tomorrow, we’ll go swimming.

21. If you eat too much, you (get)                     sick.

22.     If she (try)                        hard, she can get a good job somewhere.

23.     If I have any trouble, I (call)                       for your help.

24.     You will get into trouble if you (not, listen)                               to my advice.

25.     Please, let me know at once if you (hear)                           any news from Jane

26. They would have paid you more if they (be told)............................ of its value.

27. If I (know)............................ about the job, I would have applied for it.

28. If they had enough money, they (buy)............................... that house.

29. If you (have)........................... breakfast, you wouldn’t have been hungry.

30. If he(study)................................. harder, he would have passed the exams.

Exercise 2: Rewrite the sentences

1.     We don’t visit you very often because you live so far away.

-> If you……………………………………………………………………………

2.     That book is too expensive, so I’m not going to buy it.

-> If the book………………………………………………………………………………..

3.     We don’t go out very often because we can’t afford it.

->If we………………………………………………………………………………………

4.     We haven’t got any money so we can’t go on the trip.

->If we………………………………………………………………………………….

5.     Water these plants or they will wither.(khô)

->if you…………………………………………………………………………………..

6.     I have to work late tomorrow, so I can’t join your party.

è If I………………………………………………………………………..

7.     Unless you study harder, you won’t pass the final exam.

-> If you……………………………………………………………………………….

8.     I’ve got a lot of work to do, so I can’t go home for lunch now.

->If I……………………………… ………………………………………………

9.     She is not a millionaire so she can’t buy a house in Tokyo.

->If she………………………………………………………………………………………….

10. Study hard or you will fail the exam.

è If you……………………………………………………………………………….

1.     If I (know) ...........his phone number, I would call him.

2.     I (not buy) .................this coat if I were you.

3.     If she (come) ..........  late again, she’ll lose her job.

4.     I (help)  you if I could, but I’m afraid I can’t.

5.     If I (have) wings, I (not, have to) … … ... take an airplane to fly home.

6.     We would need less money if we (live)................................ in the country.

7.     If it (be).............................. fine tomorrow, we will go to the coast.

8.     We (phone)............................... you if we have time.

9.     If it didn’t rain, I (come)...................................... to see you.

10. I(drive).................................... to work if I had a car.

11. Where in Vietnam would you like to live if you (can)................................ choose?

12. If the weather (be)........................... good, we will have lunch outside.

13. If the company offers me a job, I think I (take)................................... it.

14. Many people would be unemployed if that factory (close).......................................... down.

15. If you finish before 4:30, I (come)............................. and pick you up.

16. If you (come)                          home on time, we’ll have dinner together.

17. I (go)                              to the movies with you if I finish my homework early.

18.   If he (learn)                         how to swim, he can go with us to the beach. 19. You (feel)                          tired tomorrow if you stay up very late tonight. 20. If the weather (not, be)                          cold tomorrow, we’ll go swimming.

21. If you eat too much, you (get)                     sick.

22.     If she (try)                        hard, she can get a good job somewhere.

23.     If I have any trouble, I (call)                       for your help.

24.     You will get into trouble if you (not, listen)                               to my advice.

25.     Please, let me know at once if you (hear)                           any news from Jane

26. They would have paid you more if they (be told)............................ of its value.

27. If I (know)............................ about the job, I would have applied for it.

28. If they had enough money, they (buy)............................... that house.

29. If you (have)........................... breakfast, you wouldn’t have been hungry.

30. If he(study)................................. harder, he would have passed the exams.

Exercise 2: Rewrite the sentences

1.     We don’t visit you very often because you live so far away.

-> If you……………………………………………………………………………

2.     That book is too expensive, so I’m not going to buy it.

-> If the book………………………………………………………………………………..

3.     We don’t go out very often because we can’t afford it.

->If we………………………………………………………………………………………

4.     We haven’t got any money so we can’t go on the trip.

->If we………………………………………………………………………………….

5.     Water these plants or they will wither.(khô)

->if you…………………………………………………………………………………..

6.     I have to work late tomorrow, so I can’t join your party.

è If I………………………………………………………………………..

7.     Unless you study harder, you won’t pass the final exam.

-> If you……………………………………………………………………………….

8.     I’ve got a lot of work to do, so I can’t go home for lunch now.

->If I……………………………… ………………………………………………

9.     She is not a millionaire so she can’t buy a house in Tokyo.

->If she………………………………………………………………………………………….

10. Study hard or you will fail the exam.

è If you……………………………………………………………………………….

1.Viết lại các câu sau đây dưới dạng CÂU ĐIỀU KIỆN LOẠI 2

1..My brother doesn't buy that car because he doesn't have enough money.

If .................................

2. We don't go out beacuse it rains

If.................................

3.I don't know his address, so I can't contact him.

If......................................

4.It's too cold so we can't go swimming.

If..............................

5.The exercises are very difficult so I can't finish in fiffteen minutes.

If......................................

6.She can't go to the meeting bacause she is busy

If.....................................

7.because I don't meet her, I don't give her your letter.

If.......................................

8.They are too slow, they can't win the mach

If.............................................

9.She is too weak, she can't take any exercise.

If...................................................

10.People don't understand him bacause he doens't speak clearly

If..................................................-