Sentence 1: Mable knew she couldn't mow her lawn at her advanced age. 
 Sentence 3: The boy agreed and mowed her lawn for her 
 Sentence 4:  When Mabel went to give the boy money he wouldn't take it 
 Sentence 5:  Mable shed a tear from the boy's kindness 
 Given Sentence 2: She went next door and asked the neighbor boy if he would do it.