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.

Title: New Shoes. Sentence 1: Dave was on his high school track team. Sentence 2: And he wanted to improve his 1 mile run time. Sentence 3: He saw advertisements for expensive lightweight shoes on TV. Sentence 4: And he saved up money to buy them.
But he was disappointed when they barely made a difference.