题目内容：

短文改错

I am an animal lover. A few weeks ago, while going home from work, I saw an old dog lain on the roadside. I got closer to see that it was there. I felt shocked when I find it was unable to move. Someone told me that it was hit by the motorcycle. I decided to bring it home and look after it careful. Every day I gave it enough food or water before I went to work. And once I came back home after work, I would play it.

To its great joy, it is now able to walk with little difficult. My efforts have been paid off.