补全对话（每题1分，共5题，5分。）
A: Hey, Gina. Do you want some ice cream?
B : No, thanks.       
A: Really? Where are you going?
B: I'm going to play baseball. Do you want to come?
A: Sorry, I can't.       
B : Well, come later then. We're playing all afternoon.
A:           But I'm not very good at baseball.
B : Don't worry about that.          You can just watch.
Come on, it'll be fun.
A: Well, OK.       
B: OK. See you!

A．It sounds nice． B．See you later． C．I need to study． D．I'm going out． E．I don't think so． F．You don't have to play． G．You can do that again．