选择合适的句子，补全对话。

A. This is John. B. I'm 8 years old. C. A toy dog for you! D. Nice to meet you, too. E. John, have some cake.

Mike: Happy birthday, Sarah.

Sarah: A cute dog, I love it. Thank you, Mike.

Mike: Nice to meet you, John.

John:

Mike: Eight candles on the cake.

Sarah: Yes.

Let's eat the cake.

Mike: OK. Can I have this one, please?

Sarah: Sure!

John: Thank you.