Section A: Read each complex sentence below. Place a comma correctly into the sentence if necessary. If the sentence does not require a comma, write NO.
1. While we were in the basement the doorbell rang.
2. Since it is raining our game has been postponed.
3. I can help you mow the lawn although I will be home a little late.
4. I worry about you because I love you.
5. If you give me your number I will call this evening.
6. When the rain stops we can take a walk.
7. Close the windows before it rains.
8. After the storm ends you can open the windows again.
Answers: 1- basement, the; 2-raining, our; 3-NO; 4-NO; 5-number, I; 6-stops, we; 7-NO; 8-ends, you