英语翻译假如你是吴华,在上学的路上目睹了一起交通事故,一位老妇人被撞,左腿受伤,流血不止,你打电话求助,在救护车来之前利

Dear Paul
Today,I saw an old woman was hit by a car on the way to school .But the car and sped away. I came up and found that elderly woman left leg injury, flow of blood. Remembered first-aid knowledge that i have learned in the school,I use what i have learnt to make the older feel better and use my handchief to stop blooding until the ambulance came. The ambulance took the old woman to the hospital.But i found that i have already missed the class.I am writing for being sorry about missing your class.
sincerely
Wu Hua