--- Can we leave the classroom now?-- No, you ______. You ______ to leave until the bell rings.
#75539
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed
推荐题目
Without gravity, we _____ walk on the ground as freely as we do now.
#63085
A
couldn’t
B
mustn’t
C
shan’t
D
needn’t
-There is someone knocking at the door.- It ______ be Jimmy, he has gone to ShangHai .
#75858
A
needn’t
B
mustn’t
C
can’t
D
may not
—Must I go to medical school and be a doctor like you, dad?—No, you _______,son. You’re free to make your own decision.
#74114
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t
--- May I smoke here? --- If you , choose a seat in the smoking section.
#63523
A
should
B
could
C
must
D
may