He stood at a window on the second floor,_he could see enemy in .

问题描述:

He stood at a window on the second floor,_he could see enemy in .
A.whereB.from whichC.whichD.from where答案是D,为啥?
A为啥不对? 是he could see enemy in the distance

他站在窗口在二楼,他从那里可以看到敌人的.
from where 是“从那里”的意思