帮你写第一篇吧
Dear LiJing,
Thanks for you to give back my MP3 which i lost Last Friday afternoon.
Last Friday afternoon,I went to watch a a football match in our school playground.the
football match is so exciting that when i left there,i left the MP3 in the playground.By the time i got home,I realized that i had left my MP3 in the playground.I rushed back to the school,but it was not there.I soon came upset,and the whole i was crying .I thought i couldn't get it back,but the next day.You gave it to me with a smile.
Now,I want to say thank you to you again,for you are a very nice person.
YOURS,
LI YI