-- 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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I really don’t know how to thank you , but for your help, I ______ my lost necklace.
#87790
A
couldn’t have found
B
mustn’t have found
C
couldn’t find
D
wouldn’t find
I should very much like to have gone to the party, but ______. 
#87309
A
I'm not invited
B
I won't be among the invited 
C
they won't invite me
D
they didn't invite me
Premier Wen advocated school bus safety_______.
#87525
A
be guaranteed
B
guaranteeing
C
should guarantee
D
must be guaranteed