She is a quiet girl at school，but sometimes she _____ be very naughty.
#62247
A
should
B
would
C
will
D
can
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The tall boy ______ be Mike. He has gone to New York to study.
#75029
A
mustn’t
B
couldn’t
C
can’t
D
might
—Must I go there right now?—No，you ________.You ________ go there before supper.
#62512
A
mustn't；need
B
needn't；may
C
can't；need
D
won't；can
—I don’t mind telling you what I know. —You _____. I can manage it myself.
#63188
A
mustn’t
B
ought not to
C
can’t
D
don't have to
You play computer games for a long time. It’s bad for your eyes.
#78345
A
should
B
shouldn’t
C
could
D
don’t have to