Dear Sally,
I am sorry to hear that you have a fever and fail the test. First,you should drink lots of water and have a good rest.It's good for you heath.If you still feel unfortable,you should go to see a doctor.As for study,dn't be sad.Failure is the mother of success.
You shuold work hard .You could also ask your teachers for help if necessary.
I hope you will feel better soon and get good greads.
Yours
Jill
在百度上打‘如果你是jill,你的朋友sally病了,头痛且发烧而且这次考试考不好。发一封e-mail安慰。并让他看医生,多喝水,好好休息,努力学习,争取好成绩。’
直接翻译