20．----Look at what you are doing!

----- Ah, I wonder　　　 　this boot won’t fit me. I’ve been trying to put it on the wrong

foot.

A. how　　　 B. if　　　 C. why　　　　 D. that

19．The question he asked was 　　　　the electrical equipment should be stored.

A. where　 B. because　 C. which　 D. that

18.　　 　caused the accident is still a complete mystery.

A. What　 B. That　 C. How　 D. Where

17. 　　　　they are most interested in is 　　　　　they can produce more and better cars.

A. That; how　 B. What; how　 C. What; that　 D. That ;that

16．There is no doubt 　　　　my friend Smith will come to visit China soon.

A. that　 B. whether C. if　 D, when

15．---Do you mind if Jim will come to help?

----- I really don’t know 　　　a person like him can help with.

A. what　 B. that　 C. how　 D. if

14. -----Do you know 　　　　Mr. Black’s address is?

　　　 -----He may live at No.18 or 19 of Bridge Street.

　I’m not sure of 　　　　.

A. what; which　 B. where; which　 C. where; what　 D. what; where

13. I have found out 　　　　they will ask to lead the victory march on Saturday.

A．when　 B. where　 C. whom　 D. how

12．I know from 　　　　you said 　　　　they’re fond of music.

A. what; that　 B. what; is that　 C. what; what　 D. that; is that

11. The news 　　　　　our team has won is the same　 　　　　we expected.

A. which; as　　 B. that; as　 C. that ;that　　　 D. 不填；as