-Excuse me,may I take this seat?-No,you _____.A may not B mustn't C had better not D all of
问题描述：
-Excuse me,may I take this seat?-No,you _____.A may not B mustn't C had better not D all of
above.然后想问下为什么A可以选?
答
这里的 A,may not=can't=musn't ,表示 不能 的意思.但一般情况下May ……he否定回答不是no, you mustn't.吗是的。may not 不常用，但也可以的。may not 通常用于正式的场合。