关于should省略的用法

题目

关于should省略的用法
Without facts, a person can't form a good opinion, for he needs to have actual knowledge on which to base his thinking.
请问这句话中,on which to base his thinking 相当于on which he should base his thinking的省略,对么?

答案

是的,宾语从句中的主语和句子的主语相同时,可以省略.