7. The manager had to go to Beijing on business on

　　 March 3, _________happened to be his only son’s

　　 birthday.

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

6. The experiment ___________they had made great contribution succeeded at last.

　　 A. to which　　 B. at which　 C. which　　 D. that

5. _________the big snake , the little girl stood under the tree, ________.

　　 A. Seen ; screamed　　　　　　　　 B. Seen ; screaming

　　 C. Seeing ; screaming　　　 　　　D. Seeing ; screamed

4. __________it with me and I’ll see what I can do.

　　 A. When left　　　　　　 B. When leaving　

　　 C. If you leave　　　　　 D. Leave

3.---What will your mother give you as your birthday present?

　 ---She promised to get a new bike ________me .

　　　 A. to　　　　　　 B. for　　　　　 C. on　　　　　 D. at

2. __________is quite natural ; a beginner can’t finish such a difficult task in an hour.

　　 A. What　　　　 B. As　　　 C. Which　　　　 D. It

1.Mrs. Smith is a woman with rich experience, ________much can be learned.

　　 A. from whom　　 B. from which　　 C. whom　　　 D. who

20. ---What can we do to help Jack ?

　　 ---All we can do is to try__________that he ought to work harder.

　　　　 A. making him to realize　　 B. making him realize

　　　　 C. to make him realize　　　　 D. to make him to realize

Unit 17

19. ________the past, our life is much better.

　　 A. Comparing with　　　　　　 B.　 Be compared

　　 C. To compare with　　　 　　　　D. Compared with

18. _________the little girl opened the window, a lovely bird flew in.

　　 A. Though　　 B. The moment　　　 C. Whether　 D. Unless