If you are in the zoo, remember not to touch or go near the animals. Although some of the animals are cute, you _________ leave them alone. 

If prices rise too high, the government has to do something _________ it. 

—How many students are there in your school?—      the students in our school      over two thousand. 

Tom has grown      enough to take care of      .

It’s nothing serious. You’ve just caught.          a cold. 

You ______ wear sports shoes when you climb a mountain.

The number of teachers in our school _______ greatly increased last term.A number of teachers in this school ______from the countryside.

—________ I watch TV now,Mom?—No.It’s too late ,and you ______ go to bed.

_______ Tom _______ Peter are fond of watching TV.

For breakfast, I usually have______ and two pieces of bread. 

The magazine was started by Becky, ______ I know.

---- Mom, when shall we go to Weifang Museum this weekend? ---- Oh, sorry. I’m going to Beijing for a meeting. ____ Saturday ____. Sunday is OK.

— Who’s singing in the next room?— It ____ be her . She has gone to New York.

—Peter doesn’t mind lending you his camera.—He __________. I’ve already borrowed one.

Nanjing isn’t so large __________ Shanghai, however, it’s the second __________ city in East China.

—________ I smoke here?—No. You are not allowed to smoke in public places.

I have two brothers. One is a teacher, _________ is a doctor.

What way can you think of ______ the mice in the room?

---May we go home mow ? --- No, you____. You____ to go home until 5 o’clock.

Drunk driving is against the law now. It ______ be forbidden.