18.It is human beings who should be responsible _______ the harm done to nature．

A．to　　　　　　 B．for　　　　　　 C．with　　　　　 D．of

17.The film is ________ interesting and exciting. It is ________ worth seeing.

　 A. very; very　 B. well; well　　 C. well; very　　 D. very; well

16.I can use a computer, but when _____ comes to repairing it, I don’t know a thing.

　 A. that　　　 B. it　　　 C. this　　　 D. one

15.____ the youth to the rising sun at 8 or 9 o'clock a.m., Mao Zedong expressed his great hope for the young men.

A. Compared　 B. to compare　　 C. Compare　　 D. Comparing

14.May I suggest that you consider the matter further 　　you take any action?

　　 A．as if　 　　　　B．unless　　　　 C．although　　　 D．before

13.________ good, the food was soon sold out.

A. Tasted　　　　　　 B. Being tasted

C. Tasting　　　　　　 D. Having Tasted

12.----- Cliff, I lost your umbrella at school. I suppose I should pay for it.

----- Oh, _______. It was just an old one anyway.

　A. Forget it　　 B. Take it easy　 C. By no means　 D. You got it

11.Make sure the gas is turned off after a bath, which would _______ cause danger.

A. somehow　　　　　　　　　　　　　 B. meanwhile

C. otherwise　　　　　　　　　　　　　 D. furthermore

10.I wouldn’t think it ____ to ask him to ____ the club.

A. worthwhile; join　　　　 B. worthwhile; join in　

C. worthy; join　　　　　 D. worthy; join in

9.　The school has ______ a special class to help poor readers.

A. set up　　　 B. set aside　 C. come true　　 D. come into being