n=1 ,vì

1+5 =6,

1+2=3,

6:3 =3   nên đáp án :n=1

Put the verb in brackets in the correct form.

1. “I expect it will rain this afternoon.” – “If it (rain) …………………….. we (not go) …………………….. swimming.

2. We (have) …………………….. to use the stairs, it the lift still doesn’t work.

3. My dog always wakes me up if he (hear) …………………….. strange noises.

4. Come on! Hurry up! Ann (be) …………………….. annoyed if we (be) …………………….. late.

5. If I (have to) …………………….. go back to work full time, I would quit my job.

6. What (you/do) …………………….. if you (be) …………………….. in my situation?

7. Their marriage only lasted three months. If he (be) …………………….. less mean, she (not leave) …………………….. him.

8. If you (press) …………………….. that button, a receptionist (come) …………………….. to help you.

9. If you (heat) …………………….. water to 100 degrees centigrade, it (boil) ……………………..

10. The film was marvellous. If you (come) …………………….. with us, you (enjoy) …………………….. it, too.

11. Imagine, darling. What (we/ do) …………………….. if your husband (have) …………………….. an accident?

12. It’s a pity David isn’t here. He (be) …………………….. very amused.

13. It’s a pity David wasn’t at the party. He (be) …………………….. very amused.

Chọn đáp án đúng:

1. The water in this swimming pool .... to cold. A. are feeling B. feel C. feels D. was feeling

2. The articles that John has written ..... difficult to understand.

A. has been B. was C. are D. is

3. The clothes in this box .... to my sister.

A. belong B. was belonging C. is belonging D. belongs

4. ..... cats as faithful as dogs? A. Be B. Is C. Am D. Are

5. Two thirds of the land ..... already been sold.

A. is B. are C. has D. have

6. He is learning ten dollars an hour, which ..... not a small amount of money.

A. be B. to be C. is D. are

7. His answers to the questions ..... (change) so far.

8. The English ..... (like) to drink tea.

9. Much progress .... (have) been made in recent weeks.

10. Both of the girls .... (be) pretty, but neither of them .... (be) intelligent.