题目内容
To make our city more beautiful, rubbish ________ into the river.
- A.needn't be thrown
- B.mustn't be thrown
- C.can't throw
- D.may not throw
B
解析:
剖析:这是含有情态动词的被动语态。首先应排除C和D,因为它们是主动语态;
含有情态动词的被动语态的构成应该是:“情态动词+be+及物动词的过去分词”,needn't是“不必”=don't have to;
mustn't是“禁止,不准”之意,故选B。
解析:
剖析:这是含有情态动词的被动语态。首先应排除C和D,因为它们是主动语态;
含有情态动词的被动语态的构成应该是:“情态动词+be+及物动词的过去分词”,needn't是“不必”=don't have to;
mustn't是“禁止,不准”之意,故选B。
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