— Can we leave the classroom now?— No, you ______. You ______ to leave until the bell rings.
#74363
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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—There's someone knocking on the door．Who it be?—It must be Mary．She promised to be here at 8：00．
#62257
A
must
B
can
C
shall
D
need
-Look at the picture on the wall. It be David's.-Yes, his name is on the first page.
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A
can
B
can't
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must
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mustn't
Chris Lee won the _________ for the best singers in 2009 Asia Song Festival.
#77173
A
grade
B
result
C
prize
D
project
---Must I go to the gym three times a week? ---No, you ______. Twice a week is OK.
#63671
A
mustn’t
B
needn’t
C
can’t
D
shouldn’t