–Look! Someone is cutting a tree on the moon.–It _______ be true, Granny. Our teacher says there is no air there.
#75239
A
can't
B
mustn't
C
may
D
should
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- Look, Sue is over there.- That ____ be her. She is in Canada now.
#78119
A
mustn’t
B
can’t
C
needn’t
D
won’t
—Miss Li, must we hand in our homework right now?—No, you ____.You can hand it in tomorrow.
#77809
A
don’t
B
mustn’t
C
needn’t
D
may not