Sentence 1: Michaela was studying in the library. 
 Sentence 3: She shuffled out of the building with everyone else 
 Sentence 4:  Soon they realized that it was just a false alarm 
 Sentence 5:  Michaela rushed back inside to resume studying as fast as possible 
 Option 1: She checked out the books, and took them home with her. 
 Option 2: Suddenly the fire alarm was set off.