Look! The students are playing on the playground. Some are running some are playing baske

问题补充：

Look! The students are playing on the playground. Some are running, some are playing basketball, are watching.

A. other

B. the other

C. another

D. others

答案：

A. other

B. the other

C. another

(答案→)D. others

解析：看！学生们正在操场上玩。一些在跑步，一些在打篮球其他的在观看。因为 are watching系动词用的复数are，所以选D。