The man ______in 1986. He _______ for 30 years.

.—Have you found your MP4 yet? —Yes. It was in the classroom, rather than on the playground, ________we practiced dancing.

Today, the forests have almost gone. People must ________ down too many trees.

Xie Lei, a student studying abroad, highly recommendsthat you a substitute family to be with.

When people tis the Great Wall.