题目

题型：不详难度：来源：

He was told that it would be at least three more months _____ he could recover and return to work.

A．when

B．since

C．before

D．that

答案

C

解析

试题分析：句意：他被告知这至少还要三个月才能恢复回去上班。这里使用了固定句型：It will be+一段时间+before…的句型，“要多久才…”, since也可以和一段时间连用，但是句型是：It is/has been+一段时间+since…”,所以选C。