Recreational activities rang from traditional outdoor activities such as playing ball s or traveling

Recreational activities rang from traditional outdoor activities such as playing ball s or traveling to all kinds of ____ activities, such as watching TV. ( range from....to... 包括从 ... 到 ... 的范围) A. indoor室内的 B. public 公开的 C. abroad外国的 D. aboard在船上

A. indoor 室内的

解析：
题目中的 “Recreational activities rang(e) from traditional outdoor activities … to all kinds of ____ activities” 提示空格处应为与 “outdoor”（户外的）相对的 “indoor”（室内的），且后面举例 “watching TV” 就是常见的室内活动。

其他选项：

B. public（公开的）——文意不对应。

C. abroad（外国的）——搭配不合理。

D. aboard（在船上）——不符合一般娱乐活动分类逻辑。

因此正确答案是 A。