One day, a little boy named Tim found a key on the floor. He picked it up and showed it to his mom. "Look, Mom! I found a key!" he said. His mom smiled and clapped her hands. "Good job, Tim!" she said.
Tim wanted to find out what the key could open. He tried to open a toy box, but it did not work. He tried to open a door, but it did not work either. Tim felt tired, but he did not give up.
Finally, Tim found a small box in his room. He put the key in the hole and turned it. The box opened! Inside the box, there was a note from his mom. It said, "I love you, Tim." Tim was so happy that he clapped his hands and ran to give his mom a big hug.
