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: Way Behind. Sentence 1: Tom was falling behind in school. Sentence 2: He needed to catch up to pass most of his classes. Sentence 3: Unfortunately there wasn't much time left. Sentence 4: Tom tried his best.
A: 
He picked which classes to concentrate on to pass.