Sentence 1: Jo was happy to get a work study job in an office. 
 Sentence 3: A professor asked Jo to make copies into a textbook for his class 
 Sentence 4:  Jo spent a week formatting and copying the pages for 200 books 
 Sentence 5:  She proudly opened a book only to see every other page upside down 
 Given Sentence 2: There, she mostly made copies with an old Xerox machine.