选择正确的选项，补全对话。

A. It's eleven o' clock. B. Good afternoon. C. I am twelve. D. OK. Let's go. E. Nice to meet you, too. F. I'm in Class Four, Grade Three.

Li Yan: 

Peter: Good afternoon. This is Kate.

Li Yan: Nice to meet you.

Kate: 

Li Yan: How old are you?

Kate: I'm in Class One, Grade Three. What about you?

Li Yan:  What time is it?

Peter: Let's go home.

Kate & Li Yan: