根据对话内容，从下面方框中选出恰当的句子补全对话，有一个选项是多余的。

A. How do you spell it, please? B．Here you are. C．What's your name? D．What's that in English? E．Is this your baseball? F．Nice to meet you, too.

A: Hello! I'm John Smith.

B: My name is Ann Green. Nice to meet you. 

A:                        

B: Look, what's this in the box?

A: It's a baseball.

B:                         

A: B-A-S-E-B-A-L-L, baseball. 

B:                         

A: Yes, it is. It's mine.

B:                        

A: Thank you.