Comma Rules: Correct the following sentences by inserting commas where they belong. (10 pts.) 7. Today around nine a. m. there was a knock on the door and Miss Warren the guidance counselor stepped into the room. 8. Dr. Noble the chemistry teacher hates being interrupted so he gave the stink eye to Miss Warren. 9. All these white kids and teachers who were so suspicious of me when I first arrived had learned to care about me.