Sentence 1: Mary liked riding her bike along the beach. 
 Sentence 3: Mary was waving at a group of kids 
 Sentence 4:  Not paying close enough attention to things around her 
 Sentence 5:  She ran right into a stop sign 
 Option 1: She would glide along the sidewalk waving at everyone. 
 Option 2: She was hit by a car while attempting to cross the street.