—Someone is knocking at the door. Is it Ann?—It _____ be her. She is giving a performance at the theatre now.
#75354
A
may
B
must
C
can’t
D
mustn’t
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--Excuse me，Mr. Li,_________ I close windows? It’s cold now.--Yes，you__________
#76604
A
can; can't
B
can; may
C
may; can’t
D
may; can
-Can I watch TV now? -No, you ________. You ________ do your homework first.
#77322
A
can; must
B
can’t; mustn’t
C
can’t; must
D
can; mustn’t
--- It’s so late. Our son______ be back!--- Don’t worry. I dare say he ______ have some extra work to do.
#62953
A
can; must
B
will; might
C
should; must
D
must; may