—I missed the first part of the film. It was really a pity.
—You __________ home half an hour earlier.

The careless man received a ticket for speeding . He ____ have driven so fast .

—Why are you late again?
—Something happened to our friend Wang Fei. I _____ to help him.

—What do you need to say?
—No person         smoke or carry a lighted cigarette in this special room.

She is a quiet girl at school，but sometimes she _____ be very naughty.

---There’s someone knocking on the door. Who _________ it be?
---It must be John. He promised to be here at 8:00.

—— It's no  easy task to catch a ticket on a website that receives l billion clicks daily．
一一I can’t agree with you more．There      be errors for every single step

Teachers _______ be sensitive to the development level of each student so as to help them better.

--- I don’t mind telling you what I know.
--- You_________. I’m not asking you for it.

—The speaker is a tall man with glasses.
—Then it         be Mr. Smith, who is short and thin.