---Look! That’s Amy.   ---It _______ be her. She’s gone to Xi’an.

 —Must we finish the project in a month?—No, you _______. 

All the cars ________ stop when the traffic light is red.

 Linda _____ come to meet me at the station, but I’m not sure.

A: May I go out to play football, Dad?B: No, you ________. You must finish your homework first. 

In China when the traffic light is red, you ________ cross the road.

Bring a map of China because you _______ want to travel around.

She ________ come to the party, but I am not quite sure.

  —The winner is a tall and thin boy with glasses!—Well，it________ be Mike.  He doesn’t wear any glasses.

－I’d like to help the homeless people in the earthquake. －You ________ join a volunteer group. 

It's the library! So you_______ make any noise here.

- _______ I take my umbrella with me? - _______ better to do so. The weather is changeable.

--- Are you coming to Davy’s party, Kate ?--- I’m not sure, I ________ go to the movies instead.

— There’s somebody at the door. Who ______ it be? Is it the postman ?—No, it ______ be him. It’s just seven o’clock. It’s too early.

——Must I come to see you again?——No, you _________.

You _________ to eat snacks in the classroom.

 One hundred yuan for a bowl of noodles, you ________ be joking!

 --Listen! Marry is singing in the next room. -- It __   ___ be Marry. She has gone home.

—_________ I take some photos in the hall, sir?  —No, you _________.

—What do you think of the hotel?—There are no customers in the hotel. It ______ have the friendliest service.