Alice stood in front of the window she could watch her classmates playing football.A. whi

问题补充：

Alice stood in front of the window, she could watch her classmates playing football.

A. which

B. from where

C. from there

D. there

答案：

A. which

(答案→)B. from where

C. from there

D. there

解析：通过分析句子结构，可知这个句子中包含一个非限制性定语从句，并且这个非限制性定语从句是由介词 + 关系词引导的，这里介词与先行词进行搭配，from the window。