Sentence 1: The teacher told her students to read. 
 Sentence 3: When they got to class the next day, they were given a quiz 
 Sentence 4:  No one had done their homework 
 Sentence 5:  The class decided to read the next time it was assigned 
 Option 1: She warned they may have a pop quiz. 
 Option 2: She told them there would be no pop quiz.