which是形容词和副词
用作疑问代词)哪一个，哪一些；
Which is my seat? ；
哪个座位是我的? ；
2、(用做关系代词)那一个，那一些；
He also had a gun with which to defend himself. ；
他还有一把自卫用的枪。 扩展资料
He invited us to dinner， which was very kind of him.
他邀请我们吃晚饭，他这么做真是太客气了。
She was very fond of speaking French， which indeed she spoke well.
她很喜欢讲法语，而且确实讲得不错。
He lives in the house which is opposite ours.
他住在我们对面的那栋房子里。
which的词性
which意思是“哪个，哪一个”，疑问代词，所以它的词性是代词
