Sentence 1: Sam had been going to the local pool for swim lessons each week. 
 Sentence 3: He wanted to ask her out, but he was nervous 
 Sentence 4:  Then one day she asked him to stay a little after class 
 Sentence 5:  She pulled him aside and shyly asked him for a date! 
 Given Sentence 2: He wanted to improve the quality of life in his country.