— What does the sign over there say?— No person ______ enter the area without the official permission.
#63455
A
shall
B
may
C
must
D
will
推荐题目
A: Listen! Is it Tina singing in the next room?B: No, it __________ be her. She is still in Shanghai.
#74329
A
can’t
B
couldn’t
C
may not
D
might not
—May I watch TV for another 15 minutes, Mum?—Oh, dear, if you _____.
#62762
A
can
B
must
C
may
D
should
——Can I walk across the road now, mum?——No, you_______. You have to wait until the light turns green.
#75668
A
couldn't
B
shouldn't
C
mustn't
D
needn't
—Teenagers _______ allowed to drive a car. — That’s true. It’s too dangerous for them to drive a car.
#74972
A
should be not
B
should not be
C
should be
D
should not
—Are you going to help him?—Why ___ I help him? He' s never done anything for me．
#63530
A
would
B
could
C
might
D
should