英语作文（asurprisingending）根据所给的故事开头续写下去,并尽可能使结尾出乎意料,（150字以上）OnesunnymorninginsummerIleftmysister'shouseandwentforawalkalongahillypath.Itwasa.(请续写）

One sunny morning in summer I left my sister's house and went for a walk along a hilly path. It was a warm day and there was no one on the path. At the end of the path I was sitting down to rest when a big black dog suddenly appeared. It ran up to me barking and lay down at my feet. I touched its head. When I started to walk home, it followed me and it would not go away. It had a collar round its neck but there was no name on the collar. When I got home, I rang up the nearest police-station. I told the police that I had found a big black dog. I said that I would keep it until its owner called for it. I gave the police my name and address. Two days later an old gentleman came to my home to ask about the dog. He said he had lost his dog because it hated riding in cars. One day it jumped out of the open window of his car. He offered me ten dollars, but I did not take the money. Then he gave me his name and address and invited me to visit him.