Bill was used to (walk) home after school. One day, he felt tired. When he had a rest under the tees, he heard a noise (come)from the bushes(灌木). He went over to see what it was.
Behind a bush, he found a black dog. Bill went back home as soon as he could with the dog and showed it to his parents. Bills dad found the dog had a (break) leg, so they brought doctor for animals by car.
On the way, Bill's parents decided that Bill could keep the dog if they couldn't find its. (own).
The next day Bill put signs like "FOUND DOG BLACK" around his neighborhood. He also wrote his phone number on them. Who lost the dog? Do you know?