He loves to play tennis in free time.

他闲暇时喜欢打网球。

Chess game can be one of favorite activity people enjoys in free time.

棋局可以是一个人最喜欢的活动中享有的自由时间。

So it is urgent tasks to know whether rural middle school students spent time in doing sports activities in free time and how to instruct them to do recreational sports.

因此，了解农村中学生会不会利用休闲时间进行体育活动，怎样利用休闲时间进行体育活动、如何指导他们进行休闲体育活动是刻不容缓的任务。