13. In this institution a medal,together with a prize of a certain sum of money, _______does best in science and technology every two years.

　A.is given to whoever　 B.are given to anyone　 C.are given to who　 D.is given to whom

12. Under no circumstances _______temporary economic development at the expense of the environment and resources.

　A.should we seek　　 B.we should seek　 C.we had sought　　 D.had we sought

11.-------- I don’t suppose he could have done well in the exam last week,________he ?

---------_______,he almost failed to pass the exam.

A. had; yes　　　　 B.has; No　　 C.could; No　　 D.did; No

10. It was from May 1 to October 31,2010 __________the World Expo 2010 Shanghai will be held,________is a great event for the Chinese people.

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

9.___________wants to go to the exhibition may take the school bus at ten this morning.

A.Anyone　　 B. Who　　　 C.Those who　　 D. Whoever

8. I hope he will soon_______his disappointment and be cheerful again.

　A.get over　　 B.get away with　　 C.get through　　 D.get off

7. We didn’t know what to say to each other at all , so that conversation was full of _______silences.

　A.awkward　　　　　fortable　　　　 C.embarrassed　　　 D.inconveniet

6. Ashley,________ such cases , is sure instantly to come up with a brilliant idea.

　A.experiencing　　　 B.to have experienced　　 C.having experienced　　 D.experienced

5.The three astronauts carried traditional Chinese medicine on board, ________sickness,and their diet includes pork and beef made in a certain way.

　A.in face of　　 B.instead of　 C. on account of　　 D.in case of

4.　He played a trick _______Jessy and he had to apologize ________treating her______a nice dinner.

　A.on; for; to　　　　　 B.in;by;to　　　　　　 C.on;by;with　　　　 D.on; by; to