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
The chief editor demanded that the article ________immediately.
#87070
A
must be submitted
B
would be submitted
C
submits
D
be submitted
With economy increasing steadily, people ______ enjoy a life of higher quality.
#87699
A
should
B
can
C
may
D
must
I was really anxious about you. You＿＿＿home without a word.
#89626
A
mustn’t leave
B
shouldn’t have left
C
couldn’t have left
D
needn’t leave
He commanded the students ______ the classroom before he returned.
#86720
A
did not leave
B
leave not
C
not to leave
D
not leaving