which i have been to可以改成to which i have been吗

题目

which i have been to可以改成to which i have been吗
比如 the cities which i have been to可以改成the cities to which i have been吗

答案

这种改法是可以的,因为介词既可以放在be后面,也可以和which 组成介宾结构引导定从.
但是需要注意的是此处to which =where,但是前一句不能用where代替.