题目内容
What were you doing the rainstorm?
A.at that time B.in time C.at the time of D.when
C at the time of是固定短语,意为“在……的时候”。
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题目内容
What were you doing the rainstorm?
A.at that time B.in time C.at the time of D.when
C at the time of是固定短语,意为“在……的时候”。