请教大侠们

tuofukaoshi

1.____ theories approximate the truth is the day-to day business of science.

A. Determining how closely                          B.  How closely to determine

C.How one determines close                       D. One is close to determining

答案是A，我选了C

2.____unstable and explodes as a supernova is not known.

A. For a star to become                                B. How a star becomes

C.A star becomes                                         D. That a star is becoming

答案是B， 我还是选了C

3. Perhaps the primary____ of adult education was industralization, which accelerated the pace of socioeconomic change.

A. causes growth                                     B. cause of the growth

C.cause was growing                               D. caused the growing

答案是B，我选了D

4.____ a lonely and rugged life, far from homes and family.

A.However the early gold prospector often lived            

B. The early gold prospector often lived

C. Not only did the early gold prospector often lived

D.The early gold prospector often living

答案是C， 而我选了B

丁丁东东

1,2两题是主语从句的问题, 你的选择导致句子有两个谓语.

3. 应该是选一个名词.

4.我也觉得是B , 答案一定对吗?

funny_1215

第4题答案是B，你看错答案了

tuofukaoshi

非常感谢， 但是答案上是C，我没有看错，可能是答案印错了吧