II 单项填空(共15小题；每小题1分，满分15分)
21. The astronaut did many experiments in the spaceship, __________ much help for
knowing space.
A. which we think it is B. which we think are of
C. of which we think is D. I think which is of
22. Between the two rows of trees _____the teaching building.
A. stand B. stands C. standing D. are
23. Before you decide to quit your job, the effect it will have on your family.
A. consider B. to consider C. considering D. considered
24. While a number of villagers in Shangcheng, Henan Province a kind of
disease caused by the biting of a certain worm, very suffered death.
A. picked up, few B. took up, few
C. brought up, a few D. picked up, a few
25. After watching the movie Inception (盗梦空间) , I bought some DVD copies of the film, but now is left.
A. none B. nothing C. no one D. neither
