Sentence 1: Jennifer heard that a meteor shower was taking place that night. 
 Sentence 3: Then Jennifer set herself up out in her yard 
 Sentence 4:  Jennifer sipped her hot chocolate and watched the meteors in the sky 
 Sentence 5:  Once she started to get sleepy, she headed inside and went to bed 
 Option 1: Once it got dark, she went to sleep. 
 Option 2: Once it got dark, she gathered up blankets and hot chocolate.