Sentence 1: Vivian always watched the same TV show on Mondays. 
 Sentence 3: She only listened to her missed message afterward 
 Sentence 4:  As she listened, her face blanched 
 Sentence 5:  It was her sister who had been in a car accident who had called 
 Option 1: So when she received a call that Monday she didn't answer. 
 Option 2: Her husband wanted her to go to a business dinner instead.