Lớp 9 Bài 7 Tự luận

The books are (a)   into beginner and advance. (category)

The outdoor centre organizes lots of (a)   activities for the kids. (energy)

The government will close down some (a)   companies. (profit)

Energy (a)   reduces your fuel bills and helps the environment. (conserve)

A (a)   is a person who takes an active part in the protection of the environment. (conserve)

(a)   of the new system will take several days. (install)

We need to find a (a)   for Sue. (replace)

She made some very helpful (a)   but her boss rejected them all. (suggest)

Planes passed overhead with unceasing (a)   (regular)

During the war many couples had to endure long periods of (a)   . (separate)