Sentence 1: Will really liked Ally, who sat behind him in History class. 
 Sentence 3: Since then Will began rolling up his sleeves 
 Sentence 4:  One day a new kid came to school 
 Sentence 5:  He beat Will up because he wanted to take out the toughest kid 
 Option 1: One day Ally told Will that his rolled up sleeves made him look tough. 
 Option 2: One day, Ally told Will that she couldn't stand when he rolled up his shirt sleeves.