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---Fifty dollars for such a T-shirt! You _______ be joking!---I’m serious．It’s made of silk.
#75661
A
must
B
need
C
may
D
Can
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He ______ it on schedule, but somehow he fell behind.
#62908
A
must have done
B
might finish
C
could have finished
D
could finish
My sister advised me that I _____ accept the invitation.
#63045
A
could
B
must
C
should
D
might
 ---Must I do the work today? ---No, you _______. You may do it tomorrow.
#78312
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t
Could I look at your picture?   --Yes, of course you ______.
#77770
A
could
B
can
C
will
D
do
She __________ be here. I saw her come in.
#77390
A
can
B
may
C
should
D
must