Air pollution is getting more and more serious, so we must take action ________ - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

Air pollution is getting more and more serious, so we must take action ________ it is too late.

A．before	B．after
C．until	D．when

答案

解析

选A　考查状语从句。句意：空气污染越来越严重，所以我们必须趁现在还来得及的时候采取行动。根据句意可知，应用before，表示“在……以前”。

核心考点

试题【Air pollution is getting more and more serious, so we must take action ________ 】；主要考察你对连词等知识点的理解。[详细]

举一反三

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A．that	B．which
C．what	D．whether

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A．if	B．when
C．since	D．unless

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A．what	B．which
C．that	D．where

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A．no matter who	B．whomever
C．whoever	D．anyone

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A．because	B．why
C．when	D．how

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