Question

【题目】The old lady’s hand shook frequently. She explained to her doctor ______this shaking had begun half a year before, and ______, only because of this, she had been forced to give up her job.

A.when;how

B.how;when

C.how;how

D.why;why

Answer 1

【答案】C

【解析】本题考查的是动词explain后引导的宾语从句的引导词的选用。第一空用how较易, 但第二空很多考生填when, 其实在前一分句中已有时间状语, 故此处用when明显不对, 仍然需用how引导, 即 “她是如何被迫放弃工作的”，与______this shaking had begun half a year before并列。答案为C。