This is the mountain village (which) I visited last year.为什么用which不用where.

问题描述:

This is the mountain village (which) I visited last year.为什么用which不用where.

I visited last year 这部分是定语从句
由于visited 是及物动词,及物动词是必须要有宾语的,所以要用关系代词which(或者that),where 是关系副词,不能作宾语,所以排除