shouldn’t be
couldn’t have been
wasn’t
hadn’t
I didn’t see her in the meeting room this morning, so I think she ( ) at the meeting.A、shouldn't have spokenB、needn't have spokenC、mustn’t have spokenD、couldn’t have spoken
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There is no light in the room.I think he ( ) in.A、should not beB、mustn't have beenC、mustn't beD、can’t be
“if they hadn’t gone on vacation, their house _______________ broken into.“A. haven’t had beenB. hadn’t beenC. won’t have beenD. wouldn’t have been
oh,I'm not feeling well in the stomach. i____so much fried chicken just nowA)ashouldn't eatB)mustn't have eatenC)shouldn't have eatenD)mustn't eat
Without your help, I _____ have achieved so much.A can’tB shouldn’tC wouldn’tD musn’t
If Tony ( ) that late film last night, he wouldn’t be so sleepy.A、didn’t seeB、haven’t seenC、wouldn’t have seenD、hadn’t seen
We () the project on time without your kind assistance.A、hadn t had completedB、didn t have completedC、couldn t have completedD、cannot have completed