More and more Chinese people follow the practice they will travel to various scenic spots to enjoy the scenery in their leisure time.
A. whether
B. which
C. where
D. that
网友回答
A. whether
B. which
C. where
(答案→)D. that
解析：这是同位语从句，从句中不缺少任何成分，that在同位语从句不作成分，没有意义，故选D。
句意：越来越多的中国人都遵循一个规律，在他们空闲的时候他们去风景胜地去旅游。