请问一下英语定语从句有没有这种特殊用法.

有这样的句子,1.we put it in a place which nobody could find.2.I was not allowed to smoke in the office which he worked.3.They like walking in a park that is clean and beautiful.4.He works in a middle school which is known to everybody.不过这个不叫复合结构短语呀!
在你的短语里in a place 是介词短语,后面是定语从句,place是先行词,which是引导词,也叫关系代词,替代的是place,在从句里充当know的宾语.