4.
阅读理解A:Good morning!
B:Good morning!
A:Are you Jack Green?
B:NO. I'm Mike Smith. I'm English. Jack is my good friend. What's your name, please?
A:My name is Zhang Peng. I'm Chinese. And this is my mother.
B:Nice to meet you.
C:Nice to meet you, too.
B:Have a good day(祝你们度过愉快的一天)!
A&C:Thanks. You, too.