--- May we leave the classroom now? --- No, you ____________ . You ____________ to leave before the bell rings.
#78161
A
mustn’t, are allowed
B
don’t have to, are allowed
C
needn’t, aren’t allowed
D
can’t, aren’t allowed
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Oh, I'm not feeling well in the stomach.I ____ so much fried chicken just now.
#63067
A
shouldn't eat
B
mustn't have eaten
C
mustn't eat
D
shouldn't have eaten
 You __________be tired—you’ve only been working for an hour.
#62234
A
must not
B
won’t
C
can’t    
D
may not
— Shall we take a taxi? — No, we         . It’s not far from here.
#76634
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t
My new pen ______. Who ______ have taken it?
#62850
A
has been disappeared; can
B
has disappeared; could
C
is missing; should
D
has been lost; may