Detailed Instructions: In this task, you're given the title of a five-sentence story and the first four sentences. Your job is to write the last sentence of the story such that it seamlessly connects with the rest of the story.
Q: Title: Missing Pages. Sentence 1: Greg ripped some pages out of a book. Sentence 2: He returned the book to the library. Sentence 3: Someone else borrowed that book. Sentence 4: They couldn't read the missing pages.
A:
They would always wonder.