18. This kind of clothes I bought last week    well. It is specially suitable for children.

A. is washed      B. are washed

C. washes       D. wash

17. ―You speak very good English!

―Thanks. I     English  in Hebei University for four years.

A. studied       B. study

C.  was studying   D.  had studied

15. The climbers succeeded in climbing to the top of the mountains, and they owed their success to the preparations they     .

A. make       B. had made

C. made      D. have made

14. According  to the  art dealer， the painting   to go for at least a million dollars.

A. is expected       B. expects

C. expected       D.  is expecting

16. ―Did any signs come up before the earthquake?

―Yes. Unusual things    all those days. For example, a number of animals got out of their homes.

A. happening     B.  were happening

C. has happened   D.   had happened

13. My mobile phone   last night so I have to buy a new one today. 

A.    has been broken down

B.    was broken down

C.    has broken down

D.    broke down

12. She told me that she had mailed part of the products and that the rest     in a few days.

A. has followed      B. have followed

C. was following       D. were following

11.--Hello, I    to ask if you are free tomorrow afternoon.

―Sorry, I have an important meeting to attend.

A. phone         B.  will phone

C. have phoned    D.  am phoning

10. ―Has Nancy gone back to her home in theUK?

— Yes. She     here only for three days with her friend,

A. stayed        B. had stayed

C. has stayed     D. is staying

9. My mother     all the cleaning for my family, but recently she has been too busy teaching to do it.

A. will do     B. is doing

C. does       D. had done