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---Will you stay at home until your sister comes back? ---Sorry, I _______. I have a meeting and have to go in ten minutes.
#77351
A
can’t
B
won’t
C
mustn’t
D
needn’t
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 --- Do we have to hand in our research reports this afternoon, Professor Smith?--- Yes, you _______ . I will be waiting to check them all the afternoon.
#62581
A
should
B
may
C
can
D
must
My sister met him in the hospital yesterday afternoon, so he _________ your lecture.
#62533
A
couldn’t have attended
B
needn’t have attended
C
mustn’t have attended
D
shouldn’t have attended
_Could I go to the movie this Sunday, Dad?Yes, you_____. But you ______ come back before nine.
#75448
A
should, can
B
must ,have to
C
can , have to
D
need, must
It’s difficult-------- me to learn English well.
#76982
A
of
B
with
C
for
D
as
 --My computer ____start, no matter how hard I try.--It might have crashed.
#62215
A
won't
B
shouldn't
C
mustn't
D
wouldn't