1. WhAat can you keep but cannot share and once you share it, you can’t keep it anymore?2. A cowboy rides into town on Friday, stays for three days, and then leaves on Friday. How did he do it?
21世纪报社版权所有,未经书面授权,禁止转载或建立镜像。 主办单位:中国日报社 Copyright by 21st Century English Education Media All Rights Reserved 版权所有 复制必究 京ICP备13028878号-12京公网安备 11010502033664号