Answer:
The answer is explained below.
Step-by-step explanation:
March 28 Today my track teammates won an award at camp. Nina used a prosthetic, or artificial leg. She was on the track team with them. My teammates were grateful to her because she ran fast. The medals were a victory for Nina and them. They were all very proud.
It was necessary to write everything in past tense since the actions were completed at a specific time in the past. Also, it was necessary to change subject and object pronouns as well as eliminating one comma after the word artificial.