F. Hello.H. Hi.John.This is Zhang Peng.What are you doing?J. I'm talking to you.D. Come on ,John.What are you doing ?H. Hi.John.This is Zhang Peng.What are you doing?B. I'm doing the dishes.What about you ?A. I'm reading a book.C. Do you want to go to the Children's Center ?E. Sure.What time ?G. Half past ten.I. OK.See you later.K. Bye