读对话，给图片标序号。
①A:Look at these toy animals, boys and girls.
B: Wow!
②A:Look at this cat, I like cats.
B: It's cute.
③A:I like dogs, do you like dogs, Su Hai?
B: Yes, I do.
④A:Do you like dogs, Mike?
B: No, I don't. I like pandas. They are cute and fat.
