* Exercise 1 : Put the verbs in brackets into correct form: 1. If we had missed the train, we .......................... (be) late for the meeting. 2. If it …………………….(not, rain), I will come to see you. 3. We would be at the airport for hours, if we …………….(not know) that the flight was delayed. 4. If Nga ……………..…….(have) your address, she will send you a postcard. 5. If he………………………(drive) carefully, he wouldn’t have got an accident 6. If he……………….. (eat) all that, he will be ill. 7. If I find your passport, I……………..(telephone) you at once. 8. If I ……………………(be) you, I would give up smoking.

1. He lost his money simply because he wasn't careful. (If)

2. He didn't hurry, so he missed the train. (If)

3. We didn't go because it raines. (If it hadn't)

4. Without this treatment, the patient would have died. (If he)

5. Mr.Mills lost his job because he was late every day. ( If Mr.Mills)

6. We didn't go on holiday because we didn't have enough money. (If we)

7. I was sick yesterday, so I didn't go to class (If)

8. Because Alan never eats breakfast, he always overeats at lunch (If)

9.Fred wouldn't do that if he didn't have your permission (Unless)

10. If no more guests come, there will be enough food for everyone. (Unless)

25.Hurry up or we’ll be late for the concert. =>If we don’t.......................................................................................................... 26.Study hard or you won’t pass the exam. =>If you............................................................................................................. 27.If it doesn’t rain, we will go camping. =>Unless it................................................................................................................ 28.Unless we protect the environment, our life will be badly affected. =>If................................................................................. 29.If someone doesn’t put the coal in, the fire will go out . => Unless........................................................................................... 30.Keep quiet or I’ll scream. =>Unless you............................................................................................................................. 31. Come here or else she will punish you. =>If you...................................................................................................................... 32.We spent 5 hours getting to London. => It took......................................... ................................ ................................................... 33.Ha Noi has got a lot of old buidings. =>There......................................... .......................................... 34.Let’s play chess. => I suggest........................................... .................. ........................................................... 35.How much do the black shoes cost? =>How................................. ..............................................................? 36.Nam plays tennis very well. => Nam is a ..................................... ....................................................... 37.Last year we took a plane to Ho Chi Ming city. => Last year we went .......................................... 39.Whose handbag is this? =>Who does................................... ................................. .........................................? 40.Unless we protect the environment, our life will be badly affected. => If ...........................................................

CONDITIONAL SENTENCES

1. Hurry up, or we will be late for the bus.

" If we ……………………………………………………………………………………………

2. Study harder, or you won’t pass the final exam.

" If you ……………………………………………………………………………………………

3. Don’t talk in class, or you won’t understand what the teacher is explaining.

" If we ……………………………………………………………………………………………

4. Be careful, or you will break the flower vase.

" If ….……………………………………………………………………………………………

5. Give me the bicycle back, or I will call the police

" I will.……………………………………………………………………………………………

6. I’ll call the police if you don’t give back my bicycle. (Unless = If …. not)

→ Unless …………………………………………………………………………………………

7. Study harder or you will fail in the next exams.

→ If ………………………………………………………………………………………………

8. Hurry up or we’ll be late for the concert.

→ If ………………………………………………………………………………………………

9. We won’t go out unless it stops raining.

→ If ………………………………………………………………………………………………

10. If Joe doesn’t change his way, he will end up in prison.

→ Unless …………………………………………………………………………………………

22. He doesn’t apply for the job because he doesn’t have enough qualifications.
→ If he ………………………………………………………………….
23. Hurry up, or we will be late for the exam.
→ If we …………………………………………………………………
24. They do not understand you because you do not often talk to them.
→ If you …………………………………………………………………
25. Because you speak English unnaturally, they do not understand you.
→ If you …………………………………………………………………

22. He doesn’t apply for the job because he doesn’t have enough qualifications.
→ If he ………………………………………………………………….
23. Hurry up, or we will be late for the exam.
→ If we …………………………………………………………………
24. They do not understand you because you do not often talk to them.
→ If you …………………………………………………………………
25. Because you speak English unnaturally, they do not understand you.
→ If you …………………………………………………………………