Exercise 1: Put the verbs in brackets into the correct form:

1.      If I see him , I _____ (give ) him a gift.

2.      If I had a typewriter, I _____ (type) it myself.

3.      If I had known that you were in hospital, I _____ (visit) you.

4.      You could make better progress if you _____ (attend) class regularly.

5.      If I _____ (know) his telephone number, I’d give it to you.

6.      If you _____ (arrive) ten minutes earlier, you would have got a seat.

7.      If he worked more slowly, he _____ (not make) so many mistakes.

8.      I shouldn’t drink that wine if I _____ (be) you.

9.      If I _____ (find) a cheap room, I will stay a fortnight.

10. A lot of people _____ (be) out of work if the factory closed down.

III. Conditional sentences - Type 3: Put the verbs in brackets into the correct tenses.

1. If I had known that you were in hospital, I (visit) ......................... you.

2. You would have seen my garden at its best if you (be) ......................... herelast week.

3. I shouldn’t have believed it if I (not see) ......................... it with my own eyes.

4. If he had asked you, you (accept) .........................?

5. If I (know) ......................... that you were coming, I’d have baked a cake.

6. If I (had) ......................... a map, I would have been all right.

7. The hens (not get) ......................... into the house if you had shut the door.

8. If he had known that the river was dangerous, he (not try) ......................... toswim across it.

9. If you (speak) ......................... more slowly, he might have understood you.

10. If he had known the whole story, he (not be) ......................... so angry.

VII. Complete the sentences with the verbs in brackets. Use conditional sentences type 1. 1. If the air in a City________ (get) very polluted, it can make people’s eyes burn.

2. If we dump all sorts of Chemicals into rivers, we________ (not be) able to swim in them in the future.

3. Many wildlife habitats will be destroyed if people________ (keep) polluting the environment.

4. If we all use public transport more, we________ (help) reduce air pollution.

5. If we________ (not stop) over-fishing the oceans, many species________ (become) extinct.

6. If everyone________ (recycle) paper, metal and glass, we ________ (not produce) so much rubbish.

7. We________ (have) dirty seafood if we________ (dump) rubbish into the sea.

8. If global warming________ (continue), temperatures________ (rise) even higher.

9. If light pollution________ (keep) growing, you________ (not be) able to see even the Big Dipper at night.

10. We________ (threaten) our own existence if we________ (not cut down) the waste rapidly.

VIII. Complete the sentences with the verbs in brackets. Use conditional sentences type 2.

1. If people________ (not be) so careless, Earth wouldn’t be in danger.

2. The amount of waste ________ (decrease) if people started to buy reusable packages.

3. Many fish wouldn’t die if factories________ (not dump) so many Chemicals into rivers and oceans.

4. If people stopped using cars completely, there________ (be) much less pollution.

5. If people________ (buy) more recycled paper, there wouldn’t be so much waste.

6. If we________ (not bury) Chemical waste underground, we ________ (not pollute) fresh water supplies.

7. Pollution________ (not be) such an issue if governments and common people really ________ (care).

8. What ________ (happen) if the whole world________ (be) full of pollution?

9. If people________ (pay) a little more attention to the environment, the Earth________ (be) greener.

10. If people no longer________ (pollute) the atmosphere, the air________ (soon become) clean again.

ai lam nhanh va dung to se tick

VII. Complete the sentences with the verbs in brackets. Use conditional sentences type 1. 1. If the air in a City________ (get) very polluted, it can make people’s eyes burn.

2. If we dump all sorts of Chemicals into rivers, we________ (not be) able to swim in them in the future.

3. Many wildlife habitats will be destroyed if people________ (keep) polluting the environment.

4. If we all use public transport more, we________ (help) reduce air pollution.

5. If we________ (not stop) over-fishing the oceans, many species________ (become) extinct.

6. If everyone________ (recycle) paper, metal and glass, we ________ (not produce) so much rubbish.

7. We________ (have) dirty seafood if we________ (dump) rubbish into the sea.

8. If global warming________ (continue), temperatures________ (rise) even higher.

9. If light pollution________ (keep) growing, you________ (not be) able to see even the Big Dipper at night.

10. We________ (threaten) our own existence if we________ (not cut down) the waste rapidly.

VIII. Complete the sentences with the verbs in brackets. Use conditional sentences type 2.

1. If people________ (not be) so careless, Earth wouldn’t be in danger.

2. The amount of waste ________ (decrease) if people started to buy reusable packages.

3. Many fish wouldn’t die if factories________ (not dump) so many Chemicals into rivers and oceans.

4. If people stopped using cars completely, there________ (be) much less pollution.

5. If people________ (buy) more recycled paper, there wouldn’t be so much waste.

6. If we________ (not bury) Chemical waste underground, we ________ (not pollute) fresh water supplies.

7. Pollution________ (not be) such an issue if governments and common people really ________ (care).

8. What ________ (happen) if the whole world________ (be) full of pollution?

9. If people________ (pay) a little more attention to the environment, the Earth________ (be) greener.

10. If people no longer________ (pollute) the atmosphere, the air________ (soon become) clean again.

ai lam nhanh va dung to se tick

II.    Complete the sentences with the correct form of the verbs in brackets.

1.    Would you go to his party if he (invite)                                  you?

2.    I (can/help)                         you translate this text into French if we had a dictionary.

3.    We (email)                      her if we had her address.

4.    If I (know)                               the answer, I wouldn't need to ask.

5.    I'd probably buy a laptop if it (be)                      cheaper.

6.    Where would you live if you (have)                     the choice?

7.    If you (have)         20 brothers and sisters, think how many birthday presents you (get)       

8. If everyone (speak)                       the same language, do you think life (be)              better?

9.    I'm sorry, I don't know. IfI(know)                     the answer, I (tell)                         you.

10.  I don't know what I (do)                                if you (not be)                                                here to help me.

VII. Complete the sentences with the verbs in brackets. Use conditional sentences type 1. 1. If the air in a City________ (get) very polluted, it can make people’s eyes burn.

2. If we dump all sorts of Chemicals into rivers, we________ (not be) able to swim in them in the future.

3. Many wildlife habitats will be destroyed if people________ (keep) polluting the environment.

4. If we all use public transport more, we________ (help) reduce air pollution.

5. If we________ (not stop) over-fishing the oceans, many species________ (become) extinct.

6. If everyone________ (recycle) paper, metal and glass, we ________ (not produce) so much rubbish.

7. We________ (have) dirty seafood if we________ (dump) rubbish into the sea.

8. If global warming________ (continue), temperatures________ (rise) even higher.

9. If light pollution________ (keep) growing, you________ (not be) able to see even the Big Dipper at night.

10. We________ (threaten) our own existence if we________ (not cut down) the waste rapidly.

VIII. Complete the sentences with the verbs in brackets. Use conditional sentences type 2.

1. If people________ (not be) so careless, Earth wouldn’t be in danger.

2. The amount of waste ________ (decrease) if people started to buy reusable packages.

3. Many fish wouldn’t die if factories________ (not dump) so many Chemicals into rivers and oceans.

4. If people stopped using cars completely, there________ (be) much less pollution.

5. If people________ (buy) more recycled paper, there wouldn’t be so much waste.

6. If we________ (not bury) Chemical waste underground, we ________ (not pollute) fresh water supplies.

7. Pollution________ (not be) such an issue if governments and common people really ________ (care).

8. What ________ (happen) if the whole world________ (be) full of pollution?

9. If people________ (pay) a little more attention to the environment, the Earth________ (be) greener.

10. If people no longer________ (pollute) the atmosphere, the air________ (soon become) clean again.

Ai ma giai dc thi to se tick va ket ban cho nhe

lam nhanh ho to nhe 

cam on moi nguoi

VII. Complete the sentences with the verbs in brackets. Use conditional sentences type 1. 1. If the air in a City________ (get) very polluted, it can make people’s eyes burn.

2. If we dump all sorts of Chemicals into rivers, we________ (not be) able to swim in them in the future.

3. Many wildlife habitats will be destroyed if people________ (keep) polluting the environment.

4. If we all use public transport more, we________ (help) reduce air pollution.

5. If we________ (not stop) over-fishing the oceans, many species________ (become) extinct.

6. If everyone________ (recycle) paper, metal and glass, we ________ (not produce) so much rubbish.

7. We________ (have) dirty seafood if we________ (dump) rubbish into the sea.

8. If global warming________ (continue), temperatures________ (rise) even higher.

9. If light pollution________ (keep) growing, you________ (not be) able to see even the Big Dipper at night.

10. We________ (threaten) our own existence if we________ (not cut down) the waste rapidly.

EXERCISE I: Put the verbs in brackets in correct tenses.

1/ If I (have) ________ a typewriter, I could type it myself.

2/ If I had known that you were in hospital, I (visit) ________ you.

3/ You could make much progress if you (attend) ________ class regularly.

4/ If I (know) ________ his telephone number, I would give it to you.

5/ If you (arrive) ________ ten minutes earlier, you would have got a seat.

6/ If he (study) ________ harder, he can pass an exam.

7/ She may be late if she (not hurry) ________.

8/ Tell him to ring me if you (see) ________ him.

9/ If you (speak) ________ more slowly,he might have understood you.

10/ What (you do) ________ if you got fat?