将下列句子合并成含有WHICH或WHO引导的定语从句的复合句

1 Here is the pen that I bought it yesterday.
2 The girl who is in a red skirt is my best friend Jane .
3 I read the book which is about a girl called Alice.
4 Is that the boy whom you talked about yesterday.
5 I dislike people who talk much but do little .

1. Here is the pen (that/ which) I bought yesterday.
2.The girl who/ that is in a red skirt is my best friend Jane.
3.The book (that/which) I read yesterday evening is about a girl called Alice.
4.Is that the boy (who/that) you talked about yesterday?
5. I dislike people who/that talk much but do little.

1、Here is the pen which I bought yesterday
2、The girl who is in a red skirt is my best friend Jane.
3、I read the book which is about a girl called Alice yesterdayevening.
4、is that the boy who you talked about yesterday?
5、I dislike people who talk much but do little.