Once upon a time, there was a little boy named Tim. He was a miserable boy because he could not walk. He tried and tried, but he could not succeed. One day, Tim met a big, friendly dog. The dog could walk, and Tim wanted to walk too.
The dog said, "Tim, I can help you walk. Just hold on to my back and try to take steps." Tim held on to the dog's back and tried to walk. They walked around the yard, but Tim still could not walk by himself.
Tim and the dog tried every day to help Tim walk. They wanted to succeed, but it was very hard. One day, Tim got very sad and said, "I will never walk by myself." The dog felt sad too.
In the end, Tim never learned to walk. He stayed miserable and the dog was sad too. They never succeeded, but they still stayed friends.
