假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下写出修改后的词语
1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者(从第11处起)不计分。
Dear Mr. Black，
We're very gladly to have received your money and some reading materials. Thank you very much.
We had been studying hard since we came back to school. Under the help of our teachers and classmates, we have made great progress on our studies. So we often praised and encouraged by our teachers and parents. We have made our minds to study hard than before to learn every subject well in order to be admitted to key university in the future.
We're looking forward to see you, but we have no chance to go to the Nanjing ourselves. So we hope you can post us a photo of yours soon.
Best wishes!
Yours，
Li Hua