ADJECTIVE CLAUSES with SUBJECT PRONOUNS

Study these examples: People:I thanked the man. He helped me. -->I thanked the man who helped me. I thanked the man. He helped me.--> I thanked the man that helped me. Things:The pen is mine. It is on the desk.--> The pen which is on the desk is mine. The pen is mine. It is on the desk.--> The pen that is on the desk is mine.

Directions: Combine the two sentences into one sentence using an adjective clause.

1)	I know a doctor. He is a kidney specialist. (use: who)
2)	He is the boy. He broke the window. (use: that)
3)	The runners are happy.  They finished the race. (use: who)
4)	The book is a grammar book. It is on the table. (use: that)
5)	The book is a vocabulary book. It is on the chair. (use: which)
6)	The bus driver was friendly. He took me to the train station. (use: who)
7)	The bus driver is rude. He usually drives me to work. (use: that)
8)	We are doing exercises. They contain adjective clauses. (use: which)
9)	She is the girl. She is in my conversation class. (use: who)
10)	He is the guy. He is in my grammar class. (use: that)