题目内容

【题目】It long before we the result of the experiment.

A. will not be; will know B. is; will know

C. will not be; know D. is; know

【答案】C

【解析】

句意：不久我们就会知道实验的结果。考查动词时态辨析题。本句是固定句型“It (will) be +一段时间+before从句”结构，表示“要不了/没有多久就会……”，时态是主将从现。根据句意结构，可知选C。

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