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: Sam wanted to be a singer. Sentence2: So he joined a singing class at his college. Sentence3: The first day of class, everyone was required to sing a song. Sentence4: Sam was very embarrassed the first day.

All his classmates were very supportive though.