— Must we wear our school uniform this afternoon?— No, you. All of us will go on an outing.

 —Do you think we are going the right way to the Forbidden City?—Sorry, I’m not sure．But it _______ be．

The man over there _________ be over fifty. He looks so young.

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

 Don’t worry. You ________ have that book tomorrow.