Sentence 1: Pete could run faster than any boy he knew. 
 Sentence 3: He knew he could beat her easily so he agreed 
 Sentence 4:  The day of the race their friends all gathered around 
 Sentence 5:  She was faster than him, beating him by four seconds! 
 Option 1: So when a new girl at school challenged him to a race he just laughed. 
 Option 2: He was faster and all the boys and girls in school.