Some people feel sick when they read a book in a car or on a boat．
#74740
A
must
B
should
C
may
D
need
推荐题目
No student ______ go out of the school campus after 10:00 at night without permission according to the school regulations.
#62751
A
shall
B
must
C
would
D
should
—Did Ann fail in English?—She ____. Don't you notice that she looks depressed?
#62213
A
might
B
must
C
may have
D
could have
—Must I finish the homework tonight?—No, you .You can finish it tomorrow.
#75652
A
mustn’t
B
needn’t
C
need
D
must
Not having work out the problem, leave the office．
#63683
A
so he was not allowed to
B
and he didn’t want to
C
the teacher couldn’t make him
D
he couldn’t free himself to
—Why are you late again?—Something happened to our friend Wang Fei. I _____ to help him.
#62788
A
did refuse
B
needn’t have refused
C
couldn’t well refuse
D
did not say no