3-副本 周二上午-10点至11点半选题 (共40题,1、 The room is in a terrible mess; it __________ cleaned.
A: can’t have been
B: couldn’t be
C: may have been
D: would be
A: can’t have been
B: couldn’t be
C: may have been
D: would be
举一反三
- The room is in a terrible mess; it __________ cleaned. A: can’t have been B: couldn’t be C: may have been D: would be
- The room is in a terrible mess; it （）cleaned. A: can’t have been B: shouldn’t have been C: mustn’t have been D: will have been waiting
- Section B The room is in a terrible mess，it（） cleaned． A: can’t have been B: shouldn’t have been C: mustn’t have been D: wouldn’t have been
- The room is in a mess; it _____ cleaned. A: can’t have been B: shouldn’t have been C: mustn’t have been D: wouldn’t have been
- This office is very dirty and in a mess; it ________ cleaned. A: can’t have been B: mustn’t have been C: wouldn’t have been D: shouldn’t have been