14.However, at times this balance in nature is ________ resulting in a number of　 possibly unforeseen effects.

A. troubled　　　　　 B. bothered　　 　　　C mixed　　　 D. disturbed

13.----Who are those people gathering in front of the building?

　 -----A group __________ itself the youth volunteers.

　　 A. calling　　 B. calls　　　 C. called　　 D. to be called

12. ----- The opening ceremony has already started.

------Look!　 The flag is _______ now.

A. risen　　　　　 B. raising　　　　 C. being raised　　　 D .being rose

11.----Young people shouldn’t always change their jobs.

　 　　 -----_____________. Young people should seek for more challenges.

　 　A．　It’s all the same to me. 　　 B. You have a point there.

　 　C．　That’s not the way I see it.　 　 D.I believe so.

10.______that silver is not widely used as a conductor(导体)?

　　 A. Why is 　 B. Is it why　 　C. Why is it 　　 D.　 Why it is

9.He was a much older player but he had the great _______ of experience.

　A. advantage　　 B. respect　　 C. success　　 D. interest

8.I’ll accept any job _______ I don’t have to get up early.

　　 A. because　　　　 B. as long as　　 C. in case　　　 D. though

7.Having broken the traffic rules, Tom _____from driving for a year.

A. has banned　　　 B. had banned　　 C. is being banned　　 D. has been banned

6.She knows that as a secretary she must be pleasant and helpful no matter how　　　 busy she is or what kind of ________ she may be in.

A. mood　　　　　 B. mind　　 　　C. from　　　 D. thought

5. Mother was satisfied to see her son well _____ for the coming examinations.

A. prepare　　 B. prepared　　 C. preparing　　　 D. to prepare