The girl which is reading a book under the tree is my sister.这句知错_英语解答

The girl which is reading a book under the tree is my sister.这句知错在哪儿
是否语法错误

人气：272 ℃　时间：2019-10-19 19:20:17

解答

which改为who.
在定语从句中,主句主语是人的话,对主句主语的先行词要用who,而不是which.