选择正确的句子补全对话。(填序号)

A. Fine, thanks. B. Can it jump? C. what's in the box? D. Is it a rabbit? E. No, it isn't.

Timmy: How are you, Lucy?

Lucy: And you?

Timmy: I'm fine, too.  

Lucy: It's an animal.

Timmy: Is it a duck?

Lucy:  

Timmy:  

Lucy: Yes, it can.

Timmy:  

Lucy: Yes, it is.