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: Ben had to cram information for an exam tomorrow. Sentence2: He spent all night studying since he didn't start yet. Sentence3: Around 5 am, he started to get dressed for school. Sentence4: When he arrived, he walked carelessly to class.

He kept falling asleep during the test since he didn't sleep well.