假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加，删除或修改。每处错误及其修改均仅限一词；只允许修改10处，多者（从第11处起）不计分。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
Hi Chris
I think going to a gym is a good way to keep health and strong. If your friend wants to be stronger, and he should try to go there more often.
Yes, there have some pills to make you look strong. Therefore, they have side effects, that will damage your health. After your friend taking this kind of pill for some time, his hair might fell out or he might have health problems, some of which may even affect her liver or heart. Some athlete, whose achievements were great, died very young because they take this kind of pill. I don't think your friend should take the risk .
Tell your friend not take the pills because he may have health problems in the future, when it is too late.
Jeff
