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 d
