She wrote a month ago, ______ we’ve heard nothing. A.since when B.before whichC.since thatD.after wh

题目简介

She wrote a month ago, ______ we’ve heard nothing. A.since when B.before whichC.since thatD.after wh

题目详情

She wrote a month ago, ______ we’ve heard nothing.
A.since when B.before whichC.since thatD.after which
题型:单选题难度:中档来源:不详

答案

A
此题答案选A,其中when 相当于 a month ago。若改为 and since then 也不可以。

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