Mr. Wise,
   I am a slow（迟钝的）student. Most of my classmates are much better than me. So I usually get worried. I spent much time studying for the tests, but I can't get good grades（分数）. Sometimes my father gives me some help. He tells me not to worry about it. But it doesn't work. What do you think I should do?
                                                                                                                                                                                             Xiaoming
Dear Xiaoming,
   Many famous people were not so good when they were young. Edison, a famous scientist(科学家), did badly in his studies when he was a 12-year-old boy. But he did a lot for the people in the world at last. When I was at your age, I didn't do well at school. But I kept working hard and I succeeded(成功) at last. You should take it easy and try your best. Tomorrow is another day. I believe you can do better.
                                                                                                                                                                                               Mr. Wise