5. When a pencil is partly in a glass of water, it looks as if it ________.

A. breaks 　　　　　　 B. has broken 　　　 C. were broken 　　 D. had been broken

4. If only I _______ how to operate a computer as you do!

A. had known 　　　 B. would know 　　 C. should know 　　 D. knew

3. ______ today, he would get there by Friday.

A. Was he leaving 　　　　　　　　　　　　　　 B. If he is leaving

C. Were he to leave 　　　　　　　　　　　　　 D. If he leaves

2. ______, we could not have finished the work on time.

A. If they do not help us 　　　　　　　　　　 B. Was it not for their help

C. Should they offer to help us 　　　　　 D. But for their help

1. You didn’t let me drive. If we _______ in turn, you_______ so tired.

A. drove; didn’t 　　　　　　　　　　　　　　　　 B. drove; wouldn’t get

C. were driving; wouldn’t get 　　　　　　 D. had driven; wouldn’t have got

20. I will never forget the days which we had a good time together at the sea.

19. Who is the man who has white hairs?

18. This is the only book that were borrowed from the　 library .

17. This is all which I can do for you.

16. He is the only one of the students who have been invited to the English Evening.