Betty: Let’s go shopping.
Helen: OK. I need a new diary. How about you, Betty? What are you going to buy? 
Betty: I want to buy a book.
Betty: Oh, look. Here are some diaries. Do you like this one? It’s blue.
Helen: Hhhmmm. Let me see. It’s beautiful but it’s too heavy. And it’s too expensive. I want a cheap light one.
Betty: A cheap light one … OK … Here’s one. It’s yellow … It’s not too heavy and it’s not too expensive, either.
Helen: It’s nice. OK, I’ll buy it and then we can go to the bookshop.
Helen: Which book do you want?
Betty: I don’t know. I want an interesting book, I guess.
Helen: How about this one? It’s about a little dog. He’s lost but he finds his home again.
Betty: That’s interesting but I don’t like dogs. And it’s too thick.
Helen: You don’t like dogs? I love dogs. Oh well. Aha! I think you’ll like this book. It’s thin and it’s famous. It’s about a boy. He can fly. He can also run faster and jump higher than anyone.
Betty: That’s interesting and exciting. Let me see. OK, it’s not too expensive. I have enough money so I’ll get this one.
Helen: Can I read it after you?
Betty: Sure.
Helen: Thanks.