45. The Song Dynasty contributed three great inventions____ world civilization. A. to B. towards C. with D. in ...

41. The map was drawn to the standard____ of 1/100,000 so there was not much detail. A. base B. line C. rate D. scale ...

37. The student was very excited when he ____ his teacher in this important lecture. A. assisted B. insisted C. resisted D. persisted ...

33. Though ____ in San Francisco, Dave Mitchell had always preferred to record the plain facts of small-town life. A. raised B. grown C. developed D. cultivated ...

28. Without facts, we cannot form a worthwhile opinion, for we need to have factual knowledge ____ our thinking. A. upon which to base B. which to base upon C. which to be based on D. to base on which ...

24. The long-awaited Hubble Space Telescope, ____to orbit the Earth next March, will observe some of the oldest stars in the sky. A. subject B. owing C. available D. due ...

20. Harold is a good student, ____ his best subject. A. as English B. English as C. being English D. English being ...

16. The boy slipped out of the room and headed for the swimming pool without his parents’____. A. command B. conviction C. consent D. compromise ...

11. He can't start the car because the battery has ____. A. run up B. run down C. run over D. run off ...

7. Difficulties and hardships have ____the best qualities of the young geologist. A. brought out B. brought about C. brought forth D. brought up ...