问题标题:
【may,can,could,must的肯定否定句应怎么回答?】
问题描述:
may,can,could,must的肯定否定句应怎么回答?
廖堃回答:
may-肯定回答:might,may否定:maynot
can-肯定回答:Yes,sbcan否定:can't
could-肯定回答:yes,sbcould否定:couldn't
must肯定:must否:needn't
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