Question

选择题For many cities in the word,there is no room to spread out further, ____New York is an exampl

A.for which   B.in which   C.of which D.from which答案说选C..of which ..说of是所属范畴。of which不是=who吗？

Answer 1

后面的定语从句可以改成：New York is an exampl of that, that指前面一整句的内容。变成定语从句的话，就是：For many cities in the word,there is no room to spread out further, which New York is an exampl of .
先行词是前面一整句的内容，所以只有用which来引导，从句里有个介词of ,可以提前到关系代词前里，就形式了C这个答案。
of which不是=who吗？并不是任何时候都是这样的。

Answer 2

用的which引导非限制性定语从句