I saw a woman running towards me in the dark. Before I could recognize who she was she ha

问题补充：

I saw a woman running towards me in the dark. Before I could recognize who she was, she had run back in the direction she had come.

A. of which

B. by which

C. in which

D. from which

答案：

A. of which

B. by which

C. in which

(答案→)D. from which

解析：考查介词+which引导的定语从句，还原定语从句得知 she had come from the direction。