–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
推荐题目
—Are you going to help him?—Why ___ I help him? He' s never done anything for me．
#63530
A
would
B
could
C
might
D
should
— Where is my dictionary?— You ______ it in the wrong place.
#62851
A
must
B
should have put
C
might put
D
might have put
---Is that Lucy’s sister, Lily?---No, it _______ be her. She has gone to English.
#75840
A
could
B
can
C
can’t
D
mustn’t
–Look! The boy is running fast! –He might ______ to catch a bus.
#75241
A
run
B
running
C
is running
D
be running