根据图上的序号，用相应的单词补全对话。

A: Look, It's an elephant.

B: Does it have any ?

A: Yes, it has four feet.

B: Does it have a ?

A: Yes, it has.

B: How many does it have?

A: It has two.

B: How many does it have?

A: It has two.

B: How many does it have?

A: It has four.