1 . If factories have better methods to protect the environment....

a. we won^,t have to suffer the polluted air 

B .  we won^,t have suffer FROM THE POLLUTED ARI

c. we won^,t have to suffer FROM THE POLLUTED ARI

d .we won^,t have to suffer FROM  POLLUTED ARI

2  many people don^,t want to live in big cities because

a, big cities are very busy , noisy and expensive

b ,  big cities is  very busy

c.  big cities will be very busy

d, big cities are very clean

Hoàn thành những câu sau với "if + Present Simple + will/won't", sử dụng những từ trong ngoặc đơn ( ). Đôi khi bạn không cần thay đổi những từ trong ngoặc đơn.

If it rains (it/rain), we won't go (we/not/go) fishing.

1. If__________(the weather/be) beautiful tomorrow, ____________(we/drive) tothe beach.

2. If ___________ (she/send) the letter now, ____________ (they/receive) ittomorrow.

3. ____________ (Fred/be) angry if ___________ (Jack/arrive) late again.

4. ______________ (I/come) to your house if ________(I/have) enough time.

5. If ____________ (she/not/pass) this exam, ____________ (she/not/get) the job that she wants.

6. _______________ (you/learn) a lot if _____________ (you/take) this course.

7. If ____________ (I/get) a ticket, ________________(I/go) to the cinema.

8. ____________ (I/buy) that machine if _______________(it/not/cost) too much.

9. ____________ (you/run) very fast, ______________ (you/catch) the taxi.

10. __________(I/go) to the doctor's if ____________ (I/not/feel) better tomorrow.

11.______________ (they/win) this match, ___________ (they/be) the champions.

1.Unluckily, we won the game although we practised a lot.

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2. His team promise that they shoud win the match next summer.

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 3. His favourite sport is table tennis, although his father will give him a racket for his 13^th birthday.

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4. Can you say the difference between a sport and a game ?

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5. In my spare time, I do judo and play  a lot of running.

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I.             III. Complete the exercise with If or Unless.
1. We cannot go sailing _______ the rain stops.
2. I won't talk to her _______ she apologizes to me.
3. You won't be able to find the house ________ you get help from your GPS.
4. I won't go _______ he is going.
5. _________ we don’t take the necessary measures now, we may have serious
problems later.
6. _________ you don't take notes you will have hard time studying later.
7. She must have graduated already ________ she failed a class.
8. Jason is always cheerful _________ something really bad happens.
9. I will never forgive you _______ you tell him the truth.
10. You are not allowed into the casino _______ you are under 21 years old.
11. My mother will cook ________ they decide to eat out.
12. I should be there by 11 o'clock ________ I don't catch any traffic.

13. I should be there by 11 o'clock _______ I catch a lot of traffic.

14. The show should start at 9:30 ________ they changed the schedule.

15. ________ they behave well, those children are not welcomed here.