The workers can ____ the wastethings ____ something useful.

I’m sorry I’ve lost your software. Let me buy a new one. —________.

What’s the population ____ the U.S.A— The U.S.A has ____ population of 297 million.

In our city, ________ college students wantto work as a teacher in holidays.

My mother impressed ________me the value of respecting others.[ ]