The two parties haven’t reached any agreement, but decided to set another date for （ ） talks.

If we cannot agree upon our Christmas activities right now, why don’t we （ ） it in next week’s class meeting?

Dentists suggest brushing teeth at least twice a day to _____ them from decaying.

Send for a doctor quickly. The old man is badly hurt so he needs _____ at once.

The engineer tried to （ ） the problem with several drawings.

Scientists now have some surprising answers about whether brain power（ ）as we get older.

—I don’t drink coffee at all. —（ ）.

—I’m afraid we must go now if we don’t want to get caught in the traffic jam. —OK. ______.

The ______ salary of the staff is about ＄50.

All of them are （ ） at Lana’s achievement.

Solar energy is a new kind of energy _____ that we can use to replace the traditional energy.

It is the ability to do the job （ ） matters not where you come from or what you are.