题目内容
【题目】We went through a period _____ communications were very difficult in the rural areas.
A. which
B. whose
C. in which
D. with which
【答案】C
【解析】period后面的定语从句中缺少时间状语,要用when,而选项中没有when,所以要选择in which作句中的状语,相当于in the period,表示时间。
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