问一下may,can,must,could提问时该怎么回答?

问题描述:

问一下may,can,must,could提问时该怎么回答?
1个回答 分类:英语 2014-10-31

问题解答:

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may:肯定may 否定mustn't can:can can't must:have to do don't have to do could:肯定sure certainly of course 否定 certaintly not,of course not 记得给分哦
 
 
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