It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．
#87654
A
may
B
can
C
will
D
shall
推荐题目
(2011·江西)It ________ be the postman at the door.It's only six o'clock.
#86557
A
mustn't
B
can't
C
won't
D
needn't
The manager proposed that Tom _________an opportunity to explain why he’d refused to go there.
#86418
A
was given
B
must give
C
should give
D
be given
—What’s your feeling now? —I am terribly sorry. If only I here yesterday!
#87389
A
came
B
would have come
C
have come
D
had come