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23.. In fact Peter would rather have left for San Francisco than ____ in New York.. 　 A. to stay　 　　 B. stayed 　　　 C. stay 　　　　 D. having stayed

22. Professor Wang , _______ for his informative lectures, 　was warmly received by his students.

　　 A. knowing 　　 B. known 　　　 C. to be known 　　 D. having known

21.________evidence that language acquiring ability must be stimulated.

　　 　　 A. If being　 　 B. It is 　　　 C. There is 　　 D. There being

20. The professor could hardly find sufficient grounds _____his arguments in favor of the new theory.

A. to be based on　 　　　　　　 B. to base on　

C. which to base on 　　　　　　 D. on which to base

19. My train arrive in New York at eight o’clock tonight. The plane I would like to take from there ______by then.

　　 A. would leave　 B. will have left　　　　 C. has left　　 　 D. had left

18. Many workers were organized to clear away　　　 remained of the World Trade Center. 　　 　 A. those　　 　　 B. that　　　 　 C. what　　 　　 D. where

17. The organization broke no rules, but ______had it acted responsibly.

　　 A. neither　　　 B. so　　　 　　 C. either　　 　 D. both

16. A survey was carried out on the death rate of those who were infected by SARS, ________were surprising.

　　 A. as results　　　　　　　　　 B. which results　

　　 C. the results of it　　 　　　 D. the results of which

15. In recent years much more emphasis has been put______ developing the students productive skills.

　　 A. onto　　　　 B. in　 　　　　 C. over　　　　 D. on

14. _____ of water makes Death Valley a desert, but it is by no means devoid.

　　 A. Lacking 　　 　　　　　　　　 B. Being lack 　

　　 C. Because of lack 　　　　　　 D. Lack