题目内容：

根据对话情景，在画线处填上适当的单词，使对话完整通顺。

A: Ouch!

B: What is the _1.___?

A: I missed the chair and _2.____down.

B: Did you hurt__3.___ ?

A: No, I am OK.

A: Oh ,look__4.___your hands! Go and wash them at _5.____.

A: OK.___ 6.__is the washroom?

B: This _7.____, please.