10． I
have to call the man? I picked up his
umbrella after the meeting?
I have to call the man whose umbrella I picked
up after the meeting?
关系代词 whom， which 在定语从句中作介词宾语时，可以和介词一起放于先行词与定语从句之间，有时为了关系紧凑也可以将 whom 与 which 与先行词紧挨着书写，而将介词置于定语从句的后面，如：
That was the room in
which we had lived for ten years? 或可以写作：
That was the room which
we had lived in for ten years?
He was the man
whom(who) you were looking for? 要注意的是此句的关系代词 whom 可以用主格取代，而 look for 是短语动词也不可将 for 放于定语从句之前。that 作关系代词作介词宾语时，不能紧跟介词，而只能将介词置于定语从句的后面。如： The man that we were talking about has come to
our school? 这时不可用 about that … 请看下面例句：