假设你是李华，你班来自美国的交流学生Arthur患病住院已有三周，请你用英文给他写封信，主要内容包括：

It’s three weeks since you fell ill. I guess you have suffered a lot in the hospital, but are you feeling any better now? We’re concerned about your health. And we all miss you very much.
In the past three weeks, we’ve been buried in study because the exam is around the corner. But don’t worry about your lessons, with which all of us will help you when you are back. Besides the routine work, we held a football match in our grade and our class won the championship. If only you had been with us!
We hope you will soon recover and join us in our colorful school life.
Best wishes.
Yours,
Li Hua


本题是写一篇给定材料的书信，写作的内容为介绍美国学生的病情，同时表示关心，询问目前的情况，介绍班级的近期活动和学习情况，同时对该交换生表示祝愿，在写作时应注意书信的格式，同时应注意写作内容要符合题意，注重写作内容的准确性和连贯性。