Paul and his dog Yogi are best friends. When Paul takes a walk, Yogi always walks behind him.
One morning, Paul was riding his bike. Yogi ran beside his (own). Suddenly, the wheel hit tall stone and then Paul fell down heavily. When Paul tried to rise by (he), he found he was badly hurt. He couldn't feel his legs.
Seeing Paul lying the ground, Yogi barked nervously. Paul said, "Go home, Yogi. Get somebody for help!" Yogi didn't want to leave at first, but Paul said the words again and again, the dog went away (final).
That morning, Bruce and Maggie, two of Paul's neighbors, were taking a walk. "Look! Yogi (run) down the street alone." Bruce said, "He never did that before." They thought it was very strange, so they decided (follow) Yogi to see what happened. They soon found Paul and quickly (send) him to the hospital.
Paul has to move in a wheelchair(轮椅) now, he feels much better. "Yogi is my watchdog and my hero! lucky I am to have such a brave dog!" Paul said.
