It’s cold outside. Don’t forget to take ________ coat on the chair. It’s for you.

A. a B. the C. an D. /

The adventures of Tom sawyer tells some exciting stories about a boy who has many ________.

A. adventures B. methods C. friends D. neighbors

The waste is usually ________ into things to recycle and things to throw away.

A. described B. discussed C. developed D. divided

May I have a talk with you, sir? I've got important to tell you.

A. nothing B. anything C. something D. everything

They have many different ways to create electricity. But some ways are ________ to the environment and easily cause air pollution.

A. helpful B. helpless C. harmful D. harmless

When traffic lights are red, we stop and wait.

A. may B. can C. must D. might

It is sunny outside. Why not ________ the light and open the window?

A. put on B. put away C. turn up D. turn off

Nobody knows if he ________ tomorrow. If he ________ here, I’ll call you at once.

A. will come; will arrive B. will come; arrives

C. comes; arrives D. comes; will arrive

—Please wait here. I’ll come back soon.

—All right. We’ll stay at the library ________ you come back.

A. until B. as soon as C. while D. after

His mother often tells him ________ too much time playing games.

A. not to spend B. not spend C. to spend D. spending