书面表达。
假设你是李华，作为选派的交流学生在美国某中学学习了一年，寄住在Mr. Brown家里，刚回到
国内。回国后你发现自己的一本英语词典遗忘在他家，因此给他写一封信，请他帮助寄回词典。信
的主要内容如下：
* 感谢在美国期间他所提供的帮助。
* 一本英语词典忘记带回。
* 词典是美国老师送的，非常珍贵。
* 词典很可能丢在卧室的书架上。
* 邮资自己付。
注意： 1、词数100左右；信的开头和结尾已为你写好。
2、可适当增加细节，以使行文连贯。
3、参考词汇：邮资-postage
Dear Mr. Brown,
__________________________________________________________________________________
__________________________________________________________________________________
Yours,
Li Hua
One possible version ：
Dear Mr. Brown,
I'm now safely back home. Thank you very much for all the kindness I got from you during my stay.
Hope everything is fine with you there.
Now I wonder whether I could ask you a favor. When I came back, I suddenly realized that I had left
my English dictionary behind at your place. It is a precious gift from my American teacher. Would you
please be so kind as to send it back to me? I'll pay for the postage. The dictionary must be on the bookshelf
in my bedroom. It is the one with a red cover.
Thanks and all the best.
Yours,
Li Hua
