Unit 5 It must belong to Carla.
Section A 1b
Girl1: Whose volleyball is this?
Boy1: It must be Carla’s. She loves volleyball.
Girl1: How about this toy car?
Girl2: Oh, that toy car must belong to Jane’s little brother. He was the only little kid at the picnic. And the magazine must belong to Deng Wen. He loves cats.
Boy1: Oh, and look, someone left a book.
Girl2: Oh, yeah… This book must be Mary’s. Hemingway is her favorite author.
Girl1: Ok… and how about this CD?
Girl2: Hmmm… The CD must belong to Grace. She always listens to classical music.

Section A 2a 2b
Bob: Oh, look! Whose backpack do you think this is?
Anna: I don’t know. Look, here’s a school T-shirt.
Bob: Well then, the person must go to our school. Oh! Here is a hair band, so the person can’t be a boy.
Anna: It could be Mei’s hair band. She has long hair.
Bob: Or the hair band might belong to Linda. She was at the picnic, wasn’t she?
Anna: Yes, she was. But then the backpack could belong to Rita. She’s always forgetting things.
Bob: Oh, look! Tennis balls.
Anna: Then it must be Linda’s backpack. She has long hair and she’s on the tennis team.
Bob: You’re right!

Section B 2a 2b
Man: Hey, look at the man running down the street. I wonder what’s happening?
Woman: He could be running for exercise.
Man: But he’s wearing a suit.
Woman: Well, he might be late for work.
Man: He looks kind of scared.
Woman: Oh, no! What’s that?
Man: Where?
Woman: There’s something in the sky.
Man: It could be a helicopter.
Woman: No, it can’t be a helicopter. It’s too big. It must be a UFO.
Man: A UFO? What’s going on?
Woman: Look, now the UFO is landing…
Man: And there’s a strange creature getting out. It must be an alien.
Woman: And the alien is chasing the man! I must be dreaming.
Man: Maybe we should call the police. (pause) Hey, wait a minute. What’s that?
Woman: Where?
Man: Over there.
Woman: It’s a woman with a camera.
Man: She could be from the TV news.
Woman: No, look at all those other people. They’re actors. Oh! They must be making a movie.