四 补全对话。
（A）
Peter: Excuse me, Helen. 1.
Helen: Sure. Here you are. 2.
Peter: It's a dog. It is from the UK. Do you like dogs?
Helen: 3. I have a dog. It's fat.
Peter: Haha! What's its name?
Helen: 4. We often play with balls together.
Peter: Cool! 5.
Helen: I have five balls. Let's play with Max after school!
Peter: OK! That sounds fun!
A. What's this?
B. Yes, I do.
C. Its name is ax.
D. How many balls do you have?
E. Can I use your pencil?

1. E 2. A 3. B 4. C 5. D