假如你是李华,在假期参加了学校和美国20天的夏令营活动写一篇英语作文,

Hello. Peter ! I have heard that you will go back home very soon so now I am writing to thank you for your help during my twenty days' training in the summer camp . I will never forget the exciting life in the camp. Though it is such a short time , I learned a lot about American culture . Meanwhile my oral English has improved . I also experienced the difference between our country and yours. It is really a forgettable moment. I do hope that you can have a good journey . Please write to me whenever you can . I am looking forward to hearing from you.
Yours.
Lihua.