Section A: Decide whether or not the sentence needs a comma, and if so, where?
1. Bob has a brother and a sister.
2. His brother is a doctor and his sister is a nurse.
3. If you want to play basketball you need to have gym shoes.
4. Tomorrow’s forecast calls for rain and wind.
5. It will be rainy but the temperature will be mild.
6. While we wait for the bus we should count the cars going past.
Section B: Label each sentence as either simple, compound, or complex.
7. The dog is white, and the cat is black.
8. My grandma has two dogs at her house.
9. After I finish my chores, I want to go to the mall.
10. It might be late, but it’s still light outside.
11. The lawyer had a case in court yesterday.
12. I need to borrow the car for school since it is raining.
Answers: 1- no comma; 2-comma after doctor; 3-comma after basketball; 4-no comma; 5-comma after rainy; 6-comma after bus; 7-compound; 8-simple; 9-complex; 10-compound; 11-simple; 12-complex.