Comma after tennis,
Michelle plays soccer, tennis, volleyball, basketball, and golf.
Comma after tonight,
"I really want to go to the sleepover tonight," Stephanie begged her mom.
Comma after 9,
On June 9, 2011, my nephew was born at the hospital in San Francisco.
Megan said that they got their new kitten some toys and a little bed for her to sleep in.
Delete the comma
I always choose chocolate or strawberry when I visit the ice cream shop.
Change , to a ?
"When are you going to restock the paper towels?" she asked.
Comma after unzipped,
I tried to tel her that her backpack was unzipped, but she ran out the door too quickly.
Change . to a ?
Monica wondered, "How can something so small smell so badly?"
Comma after bus,
Eric was planning to work on his project when he got home from school, but when he got off the bus, he realized he left his supplies in class.
Comma after began,
"Well," she began, "I'm not sure if you are responsible enough yet for a phone."