题目内容
() 2. As everyone knows,rubbisheverywhere.
A. need be thrown
B. mustn't be thrown
C. can’t throw
D. may throw
2. B
2. B考查动词语态。
rubbish和throw为被动 关系,应用被动语态,排除C和 D. 句意:大 家都知道,禁止到处扔垃圾。
mustn't表示 “禁止”。故选 B.
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