问题
The room is in a terrible mess, it _____ have been cleaned. [ ]
A: can't
B: mustn't
C: shouldn't
D: wouldn't
B: mustn't
C: shouldn't
D: wouldn't
正确答案是：
同类题型
There are five ______________ books in the room.
How do you go to work—I usually go to work _____.
－The enemy spy was found at last－Really? Where ________ himself?
Excuse me. Is there book by Mo Yan– Yes. It’s on bookshelf over there.
Hurry, Mike! The bus is coming. —Wait a moment, please! Let me see ifthere’s __________ left.