题目内容
–May I swim here?
-No, you _______. It is dangerous.
| A．won’t | B．needn’t | C．mustn’t | D．don’t have to |
C
解析试题分析：句意：---我可以在这游泳吗？---不，你不可以，他是危险的。 注意may打开头的一般疑问句用mustn’t来回答，故选C。
考点：考查情态动词。
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