The president stood by a window inside the room, , looking over the square.
A. where I entered
B. into which I entered
C. which I entered
D. that I entered
网友回答
A. where I entered
B. into which I entered
(答案→)C. which I entered
D. that I entered
解析： 考查定语从句。Enter为及物动词，先行词the room为其宾语，不需使用介词，也不能用where。非限制性定语从句只能使用which。