选词补全对话。

green    white     eyes   mum   four     big

Tadpole(蝌蚪): Everyone has a mum. Who's my mum? Where is my mum? Are you my mum?

Fish: I am not your mum. Your mother has two big and a  mouth.

Duck: I am not your mum, too. Your mother has abelly (肚皮) and clothes .

Tortoise: I am not you mum.Your mother has legs.

Frog: Look, I have two big eyes, a big mouth, a white belly ,four legs and a green clothes. I am your . My dear babies. Come on!

Tadpoles: Mum! We have a mum! I love you.