用方框中所给的选项补全对话

A. And I think email is one of the best ways to communicate with others. B. I've got so many emails to go through. C. I agree with you. D. Of course! E. How many email addresses have you had? F. I feel like playing computer games. G. I am not sure whether I'm right or wrong.

A: It's very late. Are you still on the computer?

B: Well, yes.

A: What kind of emails?

B: Some are messages from my friends and some are from the relatives.

A: Do you have to write back to them right away?

B:

Usually people want a quick reply.

A:

B: I've already had 50 people's addresses in my address book!

A:

Email is really convenient.