You could look for a job in big cities where workers are better paid.
问题描述：
You could look for a job in big cities where workers are better paid.
此处为何不填Which或that?
答
你好:
先行词是cities 在主句 You could look for a job in big cities 中 作的是状语
先行词在从句中做状语时,应选择关系副词而 which和 that都是关系代词 所以用where再者, where就其实际意义 "哪里" 也是表示地点的 这个与cities 是比较合理的搭配