用关系代词或关系副词将下列每对句子连成一个复合句. 求高手解答!

用关系代词或关系副词将下列每对句子连成一个复合句. 求高手解答!
1.The boy is my younger brother.He was here a minute ago.
2.The old man is a professor. He teaches chemistry in a college.
3.Beijing Hotel is near Tian An Men Square.The foreign visitors live there.
4.The woman is here now. you were talking about her.
5.This ji the hall.We listende to the report in it the other day.
6.The car was going 90 miles an hour. The car just passed us.
7.The man waved to us. The man was my uncle.
8.I enjoyed reading the book.You gave me a book last week.
9.I prefer the subject.The subject is science.
10.I spoke to the man.The man is a professor.