题目内容

He was told that it would be at least three more months ___________he could receover and return to work.

A.when B.before C.since D.that

B

解析考察连词。  A.当……时   B.在……之前  C.自从……以来   D.那个,引导定语从句。句意:他被告知在他完全康复重新工作之前,最好要有三个月的时间。故选B。

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