补全对话。 A: Hello! How are you? B: 1. A: I’m fine, too. Thank you. B: What’s in your hands? A: 2.I want to go to the library. 3. B: I can show you. A: That’s good. B: Look! 4. A: Thank you. See you! B: 5. A. You’re welcome. See you! B. Some books. C. Where’s the library? D. Here it is. E. I’m fine, thanks. And you?