假如你是一名失学儿童，名叫李华，你有幸得到在广州工作的Mr. Brown的资助，可以重返校园。2007年的9月20日，你给Mr. Brown写了一封信，内容如下：★ 收到钱和书后能重返校园，非常感激；★ 在老师的帮助下，学习有了很大的进步，受到老师的表扬和鼓励；★ 决心更加努力学习，取得更大的进步；★ 盼望见到Mr. Brown，希望他寄来一张照片。注意：1. 书信应包括以上所有要点，可适当增加细节，以使行文连贯； 2. 词数：100左右。Dear Mr. Brown, I’m very grateful to have received the money and books you sent me. I couldn’t have returned to school without your help. Thanks a lot. I have been working hard since I went back to school. I have made great progress in my studies with the help of my teachers. They often praise me and encourage me. Without your help, I might have left school and couldn’t have got such a good education. I have made up my mind to study harder and make greater progress. How are you getting on with your life and work? I’d like to see you, but I have no opportunity to do so. Would you please send me a photo of yourself? Thank you again and best wishes! Yours, Li Hua