主从复合句【1】道题：
问题描述：
主从复合句【1】道题：
1. His head soon appeared out of one of the second storey windows,______ he oculd see nothing but tress.
A.from whichB.from whereC.where D.from there
请解释A,B,C对或不对的原因.
答
我觉得选A.
A是定语从句,先行词是one of the second storey windows
from one of the second storey windows he could see nothing but trees.
只有这一种可能,B从来没有这种说法.C其实也可以但不如A确切,where可以=from which,in which,at which,on which..etc