- The air pollution is terrible. - It will be worse ________ we take action to - 初中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.

A．if

B．unless

C．until

D．when

答案

解析

试题分析：句意：—空气污染很严重。 —情况将会更加严重，除非我们采取措施来保护环境。A. if如果； B. unless除非，如果不；C. until直到……才；D. when当……的时候。句意和词意结合可知，选B。

核心考点

试题【- The air pollution is terrible. - It will be worse ________ we take action to 】；主要考察你对助动词等知识点的理解。[详细]

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