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> - The air pollution is terrible.- It will be worse ________ we take action to protect the environmen
- The air pollution is terrible.- It will be worse ________ we take action to protect the environmen
题目简介
- The air pollution is terrible.- It will be worse ________ we take action to protect the environmen
题目详情
- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.
A.if
B.unless
C.until
D.when
题型:单选题
难度:偏易
来源:不详
答案
B
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。
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题目简介
- The air pollution is terrible.- It will be worse ________ we take action to protect the environmen
题目详情
- It will be worse ________ we take action to protect the environment.
答案
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。