题目内容
【题目】It was not until the teacher told them the answer ______ the students understood what the question really meant.
A.before B.that C.then D.when
【答案】B
【解析】句意:直到这位老师告诉他们答案,学生们才开始理解这个问题真正意味着什么。本题考查not...until的强调句结构:It be not until +被强调部分+that...,故选B项
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