---Be polite . You _____ talk to the old like that ! ---Sorry , I won’t .
#75286
A
needn’t
B
wouldn’t
C
mustn’t
D
couldn’t
推荐题目
Even students of average intelligence ________ become top students by improving their study habits.
#62294
A
must
B
can
C
have to
D
ought to
We'd better wait more minutes. I think Jeff will come soon,
#77624
A
a few
B
few
C
a little
D
little
–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
---Listen! Is Kate playing the piano in the room? ---No. It _________ be her. She has gone to London with her parents.
#74593
A
may not
B
can’t
C
mustn’t
D
needn’t
(2013·北京东城二次联考)—________ you interrupt now？Can't you see I'm on the phone?—Sorry，sir，but it's urgent.
#62522
A
Can
B
Should
C
Must
D
Would