Don’t _______ too late tonight, or you will feel sleepy in class tomorrow.

One thousand dollars a month is not afortune but would help cover my living ________

The old professor told us every part of thematerials should be made use of ______ the power station.

What do you think we can do for our parents –You ____ do anything except to show your love — akind word, a warm smile and a helping hand.

Which month is ______ September ______ December— October.