—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.
#74208
A
must; can’t
B
must; mustn’t
C
can’t; can’t
D
can’t; mustn’t
推荐题目
---Listen! Is Kitty in the next room? ---No, it ______ be Kitty. She has gone to Beijing.
#76364
A
may not
B
can’t
C
mustn’t
D
needn’t
I talked for a long time, and in the end I_____ make her believe me.
#63024
A
should
B
can
C
was able to
D
must
I __________use a clock to wake me up because at six o'clock each morning the train comes by my house.
#63362
A
couldn’t
B
mustn’t
C
shouldn’t
D
needn’t
--- Do you have _________ paper, Millie ? I want to write a letter.--- Sorry, I don’t have .
#77291
A
any; some
B
some; any
C
some; some
D
any ;any