Sentence 1: Billy came to pick Susan up for prom. 
 Sentence 3: They left for the dance in a shiny car 
 Sentence 4:  When they got there, Susan had such a good time 
 Sentence 5:  Billy and Susan really enjoyed their prom 
 Option 1: Susan's mom said Susan couldn't go. 
 Option 2: Susan's mom took lots of pictures.