Sentence 1: Kathryn was riding bikes with her friend Juanita. 
 Sentence 3: She cried and told Juanita to get help 
 Sentence 4:  Juanita biked to her mother's house and explained the situation 
 Sentence 5:  It wasn't long before Kathryn was bandaged up and brought home 
 Option 1: Suddenly, Juanita fell off the bike and scraped hurt her knee. 
 Option 2: Suddenly, Kathryn fell off the bike and scraped hurt her knee.