Students  ______ remain in their seats until all the exam papers have been collected.
#87735
A
must
B
shall
C
may
D
can
推荐题目
Look at the trouble I’m in. If only I ________ your advice.
#87093
A
followed
B
would follow
C
had followed
D
should follow
The general ordered that the thief____. 
#89916
A
be punished
B
would punish
C
would be punished
D
should punish