快！把中文翻译成英语几句话，很快采纳，在线等谢谢，别出语法错误

I have received the letter you sent. Thank you very much for the letter. I am very much looking forward to studying at your school; the only reason I did not come this semester is because I have been practising/practicing my English these past few months. In about a week, I will reply with a formal letter and post/mail it by express mail.

有两个地方我给了你两个选择，前面的用于英国的学校，后面的用于美国的学校。。。不知道你需要哪种英语 呵呵

希望我帮了你！

I have received a letter from your school to me. Thank you for your letter to me. I am very much looking forward to go to your school to learn, the reason I did not go this semester, because the past few months I kept practicing my English. Than a week or so I will be sent a formal reply to you to express in the past.
看看可否帮助你

Dear Sirs,

Thank you very much for your letter. I am looking forward to studying in your college. I apologise for not able to attend this term. I have been busy improving my English during the last few months.