题目内容

It was not until dark _______ he found _______ he thought was the correct way to solve the problem.?

A. that; what B. that; that ?

C. when; what D. when; that?

A?


解析:

这是—个带有宾语从句的强调句型。主句是not...until句型。该句型被强调时,只能强调not+until引导的状语。宾语从句是由关系代词what引导的。

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