题目内容
10.You play with the knife.It's very dangerous.( )| A. | needn't | B. | mustn't | C. | may not | D. | might not |
分析 句意:你不可以玩小刀.非常危险.
解答 答案:B.needn't不必,mustn't不可以,may not不可能,might(may的过去式)不可能.根据It's very dangerous.可知玩小刀非常危险,不可以玩它.mustn't表示不可以.故选B.
点评 本题考查了有关情态动词的知识.注意must的否定结构mustn't表示禁止的意思,一般可解释为不可以.
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