从所给的句子中选出合适的完成对话。

A. Is he a fireman? B. They are great men. C. I don't like juice. D. Sit down and have some juice.   E. Welcome to my home.

A: Hello, Bobby.

B: Thank you. How big the house is!

A:

B: Give me some water, please.

A: OK! Here you are.

B: Thanks. Is the boy your brother?

A: No, he is my cousin.

B:

A: Yes, he is a good fireman.

B: Do you like firemen?

A: Yes.

B: I like them, too. I want to be a fireman.