One day morning, May walked her dog in a park. Then, she met a friend who was called Sam. They talked happily. Suddenly, the dog ran away quickly. She was very unhappy.

Luckily, they saw a policeman. May asked him, “Can you help me to find my dog?” The policeman said, “ OK, I will help you to find your dog.” At last, they found the dog. May was very happy and thanked the policeman.