假如你是李华,你以前英语成绩非常差,在jack(一位英国的笔友)的帮助下,你不仅增强了自信心，英语

Dear Jack,
I'm writing this letter mainly to thank you for your helping in my English. I used to be pretty weak in Enlgish. But with your help, i not only get lots of confidence in English but aslo make huge progress in English. At this very moment of ending my time in secondary school, I'd like very much to thank you for all you have done to me.
Yours,
Lihua.
我在线等财富值用，多谢，望采纳，我英语八级，以后随时还可以帮忙。