–Look! A man is cutting a tree on the moon. --It ______ be true. The teacher said there is no air on the moon.
#74768
A
can’t
B
may not
C
shouldn’t
D
mustn’t
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—________ I watch TV now,Mom?—No.It’s too late ,and you ______ go to bed.
#77976
A
May;have to
B
Will;should
C
Can;will
D
Must;need
---Dad, must we wait until the light becomes green?---Yes,I’m afraid we .That’s the traffic rule.
#74656
A
can
B
may
C
have to
D
need
The problem is too difficult for him. He _______ solve it by himself without any help.
#76048
A
can't
B
mustn't
C
shouldn't
D
needn't
----May I listen to the music here, Mr White? ----Sorry , you’d better ____ it like that..
#76095
A
not to do
B
not do
C
don’t do
D
not do so