Sentence 1: I was visiting a festival with some friends when we heard gunshots. 
 Sentence 3: She claimed it was her boyfriend but he was already on the ground 
 Sentence 4:  She bragged on him but her co-workers doubted her 
 Sentence 5:  She admitted the truth but her embarrassment cost us our friendship 
 Option 1: I ran away while my friend's boyfriend pulled her down behind a car. 
 Option 2: I ran up and grabbed my friend and pulled her down behind a car.