此题要求改正所给短文中的错误。文中共有10处语言错误，每句中最多两个错误；每处错误仅涉及一个单词的增加，删除或修改。
删除：把多余的词用斜线（\）划掉。
增加：在缺词处加一个漏字符号（∧），并在其下写出该加的词。
修改：在错的词下划一横线，并在该词下面写出改正后的词。
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）不计分。
Dear Sir/Madam,
I’m writing to answer your ad publishing in “Panorama”. I devote myself to environmental protection and I am considering joining in your club. I would appreciate if you could give me some information. First, I would like to know how often meetings are held and where they take the place. I would also like to know whether the talks were given by experts in the field or by member of your organization. In addition, I would be grateful if you would tell me whether it is any extra charge for the materials.
Beside, please tell me if there is a reduced membership fee for we students. Finally, I hope you can organize activities suitably for senior high students. I am looking forward to hearing from you at your earliest convenience.
Yours faithfully,
Li Lei