It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
#90290
A
may
B
can
C
will
D
shall
推荐题目
---Mike must have known that.---No, he ________. How _______ he?
#87806
A
mustn’t, must
B
may not, might
C
couldn’t, can
D
needn’t, need
They must have been here the day before yesterday,＿＿＿＿?
#89896
A
mustn’t they
B
didn’t they
C
mustn’t have they
D
had they
Look at the clock! It's time ______ work.
#90300
A
we started
B
we'll start
C
we're starting
D
we have started