1. The vacuum cleaner is a valuable labor-saving ______ action. A. device B. engine C. piece D. instrument
2. The flight was postponed because of technical problems and was finally cancelled last week when a ______ was discovered. A. accident B. defect C. damage D. defeat
3. When she was crossing the road, she was knocked down by a motor-car and lay ______ by the roadside. A. asleep B. thoughtless C. unconscious D. unaware
4. The novels he has written have shown his ______ ability as an author. A. literal B. literally C. literature D. literary
5. The reader is urged to be a leader, rather than a follower. to rely on his own power, rather than to ______. A. inform B. conform C. deform D. reform 来源：考试大 6. He would much ______ it if you could do him the favor. A. award B. apply C. appreciate D. anticipate
7. If our ______ is correct, then the space-craft should reach the moon on Monday. A. calculation B. composition C. communication D. vision
8. San Francisco’s Chinese community, comprising 67, 000 ______ is the largest concentration of Chinese outside of Asia. A. visitors B. workers C. adults D. inhabitants
9. We didn’t catch the train on ______ of the traffic congestion. A. basis B. charge C. account D. behalf 来源：考试大 10. Though he has suffered from cancer for so many years, it is so strange that he has ______ to the present day. A. deprived B. survived C. derived D. revived