能力拓展，补全对话。

A: Good morning. 1._____are you from?

B: I'm from America.

A: Do you work in a middle school?

B: 2._____, I do. I 3._____English.

A: Can you 4._____Chinese?

B: Yes, a little. I go to Chinese classes every week.

A: 6._____ have you been in Beijing?

B: For three years.

A: Do you 7._____any children?

B: Yes, I have a son and a daughter.

A: Are they here8._____you?

B: Yes, they are.

1._____ 2.______ 3._____ 4._____5._____ 6._____7._____8._____