Let’s visit the sick children in hospital and       .

—Show me your homework, Dave?
—Sorry, Mr. Green. I’ve        it at home.

For your coming vacation, why not consider        to Zhengzhou?

You can choose       whenever you like.

Lily has problems       English.

Our English teacher often encourages us         more English books and magazines.

The good news made us        excited.

Don’t       the trees! We should protect our environment.

For most people, it’s very difficult to        air on the top of Qomolangma.

To exercise more is a good way to        us against illness.