请帮我合并两个英语句子谢谢

题目

请帮我合并两个英语句子谢谢
请用who,which ,或that
合并句子：
一,The girl is sewing a dress .The girl studies in a vocational school
二,The tall building is a school.The building stands at the end of the street

答案

The girl who studies in a vocational school is sewing a dress .
The tall building that stands at the end of the street is a school.