求一篇初二英语书面表达假如你是马宁,昨天你收到英国朋友Jack的来信.Jack在信中说他经常生病,想知道如何才能保持健康

Hi Jack,
I am sorry to hear that you frequently get sick, and here i have some advices for you to stay healthy. First of all, you need to learn to gurantee good sleeping quality everyday. Secondly, you
need to consume variety of fruits and vegitables in order to absorb necessary viatamin. Thirdly, doing excercise everyday and therefore you will be enegetic and fully prepared for everyday's work load. At last, drink water, and consume milk everyday before sleep.