Q: 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.
Sentence1: Bob went to the gas station to fill his car. Sentence2: He accidentally put diesel instead of gasoline into his car. Sentence3: His car began to stutter when he tried to start it up. Sentence4: His car wouldn't move no matter what.
A:
Bob had to call a mechanic to get his fuel pump cleaned out.