A classmate's party.
Justin's classmate was having a birthday. He went with his mom and bought a gift. Then, he got to the party. At the party, they played games and ate cake. When it was over, Justin went home.
At the party, they played games and ate cake. Justin's classmate was having a birthday. When it was over, Justin went home. Then, he got to the party. He went with his mom and bought a gift.