选择：You have been doing washing all the morning.You must be tired,( )you?A.mustn`t B.are C.aren`t D.must

分类: 作业答案 • 2021-12-19 16:20:08

问题描述：

选择：You have been doing washing all the morning.You must be tired,( )you?
A.mustn`t B.are C.aren`t D.must

答

You have been doing washing all the morning.You must be tired,(aren't)you?表示肯定猜测.