Must I go to medical school and be a doctor like you,Mom—No, you__________, son. You’re free to make your own decision.

16 Summer Olympic Games will be held in Rio de Janeiro, Brazil, which becomes the first city in South America _________ Olympics.

Can you come on Monday or Tuesday, Scott —I’m afraid_____ possible. I’ll be on business on those two days.

Do you Know_______ lady in blue 一Yes. She is a teacher of a university.

The novel written by the author________ well，but five years ago no one could have imagined how great a role he ________in the literary world.