题目内容
【题目】Alice _______the Party before she entered the university.
A. has joined B. will join C. had joined D. was joining
【答案】C
【解析】句意:爱丽丝在上大学之前已经入党了。根据时间状语从句before entered the university可知此处表示过去的过去,故用过去完成时had done,故选C。
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