The number of deaths from heart disease will be reduced greatly if people _____ to eat more fruit and vegetables.

Nothing can _____ unless you tell us the truth.

Mr. Phillips caught up with the boy in the corridor and （ ） his hand on his shoulder.

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

______ is not known yet.

The whole class couldn’t help _____ when they saw the haircut of their new classmate.

Our main concern is to _____ the living standard of the people.

After a three-hour heated discussion, all the members in the jury reached the conclusion that the man was_____of murder.

He apologized _____ having to leave so early.

I wrote it down_____I should forget it.

As a new graduate, he doesn’t know （ ） it takes to start a business here.

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