( ) 11. Peter usually do some sports after class every day. A. 做运动 B. 参加社团 C. 做公益 ( ) 12. Running helps me relax after hard work. A. 锻炼 B. 享受 C. 放松 ( ) 13. Most children enjoy outdoor activities. A. 室内活动 B. 户外活动 C. 室内运动 ( ) 14. I love the fresh air and the sunshine. A. 新鲜水果 B. 新鲜空气 C. 新鲜事物 ( ) 15. What do you usually do to keep healthy ? A. 保持健康 B. 保持兴趣 C. 保持童心