假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的一篇作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧），在其下面写上该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从11处起）不记分。
Dear Sir,
Last night I got caught in the heavy rain on the way home. As the result, I got a bad cold with a headache. I felt very tiring. My mother took me see the doctor. After the examination, the doctor told me to make it easy. He said it was nothing seriously. He also told me to have a good rest for a couple of days, take the medicines on time and drunk more boiled water. So I have to ask you a three-day leave. After I recover, I would try to make up for the missing lessons. If there are anything I do not understand, could I turn to you for help?
Yours,
Mike