Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Charles was running late for work. Sentence2: He rushed out to his car to leave. Sentence3: Charles realized that he forgot his keys! Sentence4: He rushed back inside to grab them.

Charles was finally able to leave for work.