Sentence 1: CeCe thought she was good at skiing. 
 Sentence 3: On the way down the slopes, her friend crashed 
 Sentence 4:  CeCe stopped to help her friend 
 Sentence 5:  Later her friend beat her down the mountain 
 Option 1: She challenged her friend to a race. 
 Option 2: She bragged to her friends and then fell down and broke her leg.