求一篇英语文章100字左右

Dear ×××,
Last month,I was walking home when suddenly a motorbike ran to me very fast and hit me at the crossing.I was knocked over and what's worse ,I was bleeding seriously.But the motorbike ran away without stop .At that time,you drove to me and sent me to the near-by hospital in time .Luckily.after a three-hour operation ,I was saved by doctors .Now I feel much better and I can walk a bit slowly .Without your help ,I couldn’t have been saved.So I must say thanks to you,and I’m willing to help whoever needs help.
Yours sincerely
×××