根据下面的提示，以“Talking about Having Sports”为题编写一段对话(字数：80--)。

　　提示：

　　Susan每天下午参加体育活动。她喜欢游泳，每星期游泳一次。David在中学时代也常游泳，但现在没有时

　　间，人也开始发胖了。Susan邀请David当天下午一起去游泳，并约定下午三点在游泳池见面。

　　Talking about Having Sports

　　David： Susan, you like sports, don’t you?

　　Susan： Yes. I have sports every afternoon.

　　David： Do you often go swimming?

　　Susan： Yes, I go swimming once a week.

　　David： I used to swim at middle school, but I don’t have time any more.

　　Susan： That’s too bad! Exercise is very important.

　　David： I know. I am getting fat, you see. Anyway, I don’t want to be heavy.

　　Susan： Well, I’m going to swim this afternoon. Do you want to go with me?

　　David： OK! I really need more exercises. When and where shall we meet?

　　Susan： How about three o’clock, at the swimming-pool?

　　David： All right. Good-bye!

　　Susan： Good-bye!