Read and choose 阅读对话，根据上下文，选择合适的句子将对话补充完整，并将该选项前面的字母编号写在相应的横线上。

Jack: Hello, this is Jack!
Zhang Peng: This is Zhang Peng.  ___________________
Jack: I am sorry. He is busy now. Please hold on.
Zhang Peng: _______________________________________________
Jack : He is writing an e-mail. He is coming.
Zhang Peng: Hi, John! ________________________________________.
John: I go to the playground at 7:00 in the morning.
Zhang Peng: It is early. __________________________________________
John: I get up at 6:00.
Zhang Peng: Shall we meet at 6:50 at school?
John: ___________________________________________