–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
—Listen! Is that Pingping playing the guitar? —No. It __________be Pingping. He has gone to Beijing.
#76611
A
mustn’t
B
may
C
can’t
D
must
He________sleep，although he tried to，when he got on such a hunt for an idea until he had caught it.
#62298
A
wouldn’t
B
shouldn’t
C
couldn’t
D
mustn’t
—Look! The man at the gate ______ be our headmaster. He is always standing there every morning.—No, it ______be him. He is holding a meeting in the office now.
#75570
A
must, can’t
B
must, mustn’t
C
can’t, can’t
D
can’t, mustn’t
It was so dark outside that the little child ________ go out by himself.
#62941
A
dare not to
B
dared
C
dares
D
didn’t dare to