-- Isn’t that Ann’s husband over there?-- No, it ________ be him. I’m sure he doesn’t wear glasses.
#87249
A
can’t
B
must not
C
won’t
D
may not
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(2013·山西高三诊断)Honey, you ________ alcohol for they have stopped drinking.
#86569
A
may not have bought
B
mustn't have bought
C
can't have bought
D
needn't have bought
Without your help, I ____the exam last term. 
#89943
A
failed in
B
would have failed
C
wouldn’t pass
D
would fail