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.
Q: Sentence1: Adam was sitting at his desk when his dog Tuie came up to him. Sentence2: She put her head in his lap and whimpered. Sentence3: He reached down to pet her. Sentence4: She wagged her tail happily and started to lick his hand.
A:
He kept petting her because it made her stop whimpering.