I ________ be a little bit slow, but at least I don’t make foolish mistakes. 

Must we finish all the homework today or tomorrow?                    – You ____ worry about it. You may hand it in next week. 

—I ________ speak English in class because I’m afraid of making mistakes. —Don’t be shy. Believe in yourself and everything will be OK. 

All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.                                    

---Dad, must we wait until the light becomes green?---Yes,I’m afraid we      .That’s the traffic rule.

 -- Are these _______ all from No. 2 Middle School? -- Yes. They often _________ their free time to help the old here.

— Must I finish my homework now, Mum?                        —No, you _____. You can do it tomorrow.

一Are you going to Guilin by plane?一It’s fast but expensive, so I’m not sure．I ________ take a train．

 ______ Tom be in his office so late at night ?

There’s enough time for you to go to the airport. You        hurry now.

 --Tibet, a part of China can not suddenly become its own country.--_______. All the Chinese people are against it

—This pair of shoes ____ belong to Jack. He likes this kind very much.—It ____ be his. It’s too large for him.

- Someone is knocking at the door.  - It ______ be Tom. He is still in the school.

---- Mum, I don’t like drinking milk. ---- For your health, dear, you _______ .

We _______ play on this road. There is too much traffic. 

—Can you sing or dance?     —_____.

 —Can you play the violin? —_____. But I can sing.

—You                      praise your son. He works harder than before. —Thanks, I will.

—Look! It________be the new woman manager. —It________be her.She has just left for Shanghai. 

— May I park my car here, Sir?  —_________. You may park it over there.