Students ___________ remain in their seats until allthe papers have been collected.

We should do what we can ______ people’s hard work pays off．

________ the woman with the baby come over? We have a seat here. —Thank you, sir. Actually I do have my seat here. But my baby likes to look out of the window.[ ]

I _____ be late for school, but now I ______ getting up early every day.

____ have you done the volunteering work in your community–Since I moved to our neighborhood.