此题要求改正所给短文中的错误。对标有题号的每一行做出判断：如无错误, 在该行右边横线上划一个勾（√）, 如果有错误（每行只有一个错误）, 则按下列情况改正：
该行多一个词：把多余的词用斜线（\）划掉, 在该行右边横线上写出该词, 并也用斜线划掉。
该行缺一个词：在缺词处加一个漏字符号(∧), 在该行右边横线上写出该加的词。
该行错一个词：在错的词下划一横线, 在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
Dear Mr. Li,
I am one of your mobile newspaper user. I know your
小题1:_________
mobile newspaper is a first English mobile newspaper
小题2:_________
that is designed teenage readers in China. It is very
小题3:________
popular among teenagers. You had provided a good service for
小题4:_________
teenagers. Every day, we are able to receive the late English
小题5:_________
news and stories from the mobile newspaper, which make
小题6:. ________
it convenient for teenagers to learn English. However, I
小题7:________
wonder that you can add some new columns (栏目) we
小题8:_________
teenagers are interested in them. We will appreciate being
小题9:_________
able to reading more in such columns.
小题10: _________
Yours sincerely
Li Hua