问题

Students _____ remain in their seats until all the papers have been collected.[ ]

A: may
B: shall
C: need
D: can

正确答案是：

同类题型

Excuse me, could you please help me with my English– ______.

Would you mind ______ here

It’s hard to imagine what progressthey _________ in the past few months.

Look! You have left the room ____, and you must put it ____right away.

income,Ithinkmost peopledeserve more than what they get.— ______.