◎ 题干
Plastic bags won't be allowed to be used for free in the supermarkets. They can't _____ easily, which does
great harm to our environment.
[     ]
A. break off
B. break in
C. break down
D. break out
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Plastic bags won't be allowed to be used for free in the supermarkets. They can't _____ easily, which does great harm to our environment. [ ]A. break off B.…”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。