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: Mark had a nasty cough. Sentence2: He tried to cover his mouth but it was too late. Sentence3: He apologized to everyone near him. Sentence4: They forgave Mark for his mistake.

Mark kept his hand close to his mouth in case it happened again.