---Must I come at four o'clock?--No you ---.A .may not B.don't have to
问题描述:
---Must I come at four o'clock?--No you ---.A .may not B.don't have to
答
B
don't have to
没有必要
答
B 不必
A 也许不(注意:一定不能翻译成”可以不”)
所以选B