Before a problem can be solved，it must be obvious____the problem itself is.A．wha - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

Before a problem can be solved，it must be obvious____the problem itself is.

A．what

B．that

C．which

D．why

答案

解析

A解析：考查名词性从句。句意为“在一个问题被解决之前，这个问题本身是什么必须要明确。”分析句子成分后可知，在before引导的时间状语从句中，it为形式主语，真正的主语为“the problem itself is”，在主语从句中is后缺少表语，故用what引导。

核心考点

试题【Before a problem can be solved，it must be obvious____the problem itself is.A．wha】；主要考察你对名词性从句等知识点的理解。[详细]

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A．Wherever, what	B．wherever, whatever
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