15. Though he isn’t strong, ______ he works just as hard as everyone else.

A. but　　 B. yet　　　 C. therefore　　 D. however

14. A healthy life is frequently thought to be ______ the open countryside and homegrown food.

A. involved in　　 B. attached to　　 C. associated with　　 D. added up

13. The war is so cruel that it always causes great losses, ______has happened in Iraq.

A. what　　 B. as　　 C, that　　 D. one

12. 24 hours has passed after the explosion in the mine, but rescue efforts to find the missing ______ carried out.

　 A. are still being　　 B. are always　　 C. will soon be　　 D. have already been

11. Why didn’t you tell me the meeting had been put off? I ______ have got up early in the morning.

　 A. may not　　 B. mustn’t　　 C. can’t　　 D. needn’t

10. In China, some culture relic sites are being damaged and they are _______ proper protection.

　 A. in short of　　 B. in need of　　 C. in charge of　　 D. in spite of

9. There are altogether eleven books on the shelf, ______ five are mine.

　 A. on which　　　 B. in which　　 C. of which　　　 D. from which

8. _____ seems strange to us is _______she can sing so many English songs beautifully.

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

7. ---You’d better do the job_______.

　 --- Don’t you think it is ______ time?

　 A. hand in hand; waste　　　　 B. hand in hand; a waste of

　 C. hand to hand; wasted　　　 D. hand by hand; a waste of

6. The Indian Ocean tsunami at the end of 2004 is believed _______more than 160,000 people and make millions homeless, ______ it perhaps the most destroying tsunami in history.

　 A. to kill; making　　　　　　　　　 B. to have killed; making

　 C. having killed; to make　　　　　 D. killing; made