判断对错，对的画“√”，错的画“×”。

(      )1. Sarah: How are you?

             Bai Ling: Fine, thank you!

(      )2. Li Ping: How old are you?

            Wu Yifan: I'm nine.

(      )3. John:  Thank you !

            Mike: You're welcome.

(      )4. Chen Jie: May I have a look?

            Bai Ling: Look!

(      )5. John: What's your name?

             Bai Ling: My name is Bai Ling.

(      )6. Tom: Let's go to school, OK?

             Sarah: Great!