Q: 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: Pet Gerbil. Sentence 1: One day Aaron's pet gerbil got sick. Sentence 2: Aaron immediately rushed him to the vet. Sentence 3: Fortunately Aaron was fast enough to get him treated. Sentence 4: Eventually he was good as new.
A:
Aaron was very happy.