— There’s somebody at the door. Who ______ it be? Is it the postman ?—No, it ______ be him. It’s just seven o’clock. It’s too early.
#74903
A
may, can’t
B
will, won’t
C
may, mustn’t
D
must, may not
推荐题目
Don’t play with the dog, Jack, for it ______ be dangerous at times.
#63358
A
shall
B
can
C
should
D
must
—What have you learned from your experience in Thailand?—Well, meeting people from another culture ______ be very difficult．
#63318
A
must
B
can
C
should
D
shall
--Listen! Marry is singing in the next room. -- It __ ___ be Marry. She has gone home.
#74912
A
mustn’t
B
may
C
can’t
D
should
The winner of the race is tall and thin; he _______ be my friend, Mike, who is short and fat.
#63175
A
might
B
mustn’t
C
can’t
D
should