It has been announced that candidates ______ remain in their seats until all the papers have been collected. 
#90070
A
can
B
will
C
may
D
shall
推荐题目
________ stop advertising, prices would be greatly reduced.
#89209
A
Were they to
B
Could they
C
If they
D
Would they
You must be a student, ________you? 
#89865
A
wasn’t
B
are
C
mustn’t
D
aren’t
Oh,I'm not feeling well in the stomach.I ________ so much fried chicken just now.
#86626
A
shouldn't eat
B
mustn't have eaten
C
shouldn't have eaten
D
mustn't eaten