选择：You have been doing washing all the morning.You must be tired,_英语解答

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

人气：486 ℃　时间：2019-08-25 09:46:52

解答

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