【题目】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. in which
C. from which D. by which
在线课程【答案】C
【解析】考查定语从句，先行词为direction,后面的从句意思为“她跑来的方向”，根据短语come from可知，which前面的介词用from,故选C。