请问这句话中为什么可以用that指人呢?可以换为which吗?

问题描述:

请问这句话中为什么可以用that指人呢?可以换为which吗?
She is the only one among us that knows French.

定语从句引导词 that 可以指人或物
which只能指物
who/whom只能指人
本来就可以指人啊,
俊狼猎英 团队,不懂追问,有用的话采纳一下!She is one of my neighbours that is friendly to me.那这句话对吗?that is friendly 改成that are定语从句修饰的是my neighbours , 谓语动词用复数。