问一下may,can,must,could提问时该怎么回答?

如题所述

第1个回答  2012-05-31
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 记得给分哦本回答被提问者采纳
第2个回答  2012-05-31
may一般用can回答
can也可用can回答
must否定用need not 回答
could可用could也可用can
第3个回答  2012-05-31
yes, 主+may. no,主+may not.
yes,主+can. no,主+can't.
yes,主+must. no,主+needn't/主+don't/doesn't have to.
yes,主+could. no,主+couldn't.
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