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。

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。

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(从第11处起)不计分。

The teenage year from 13 to 19 were the most difficult time for me. They were also the best and worse years in my life. At the first, I thought I knew everything and could make decisions by yourself. However, my parents didn't seem to think such. They always tell me what to do and how to do it. At one time, I even felt my parents couldn't understand me so I hoped I could be freely from them. I showed them I was independent by wear strange clothes. Now I am leaving home to college. At last, I will be onmy own, but I still want to have my parents to turn to whenever need help.

{#blank#}1{#/blank#}     {#blank#}2{#/blank#}         {#blank#}3{#/blank#}          {#blank#}4{#/blank#}       {#blank#}5{#/blank#}        {#blank#}6{#/blank#}        {#blank#}7{#/blank#}        {#blank#}8{#/blank#}    {#blank#}9{#/blank#}  {#blank#}10{#/blank#}  

Dear Editor,

    I am writing tell you about the discussion we've had about whether it is necessary of middle school students to have mobile phones. Most students think this is more convenient for them to keep in the touch with their parents and classmates. And what's much, it's a fashion. However, most teachers think middle school students are not old enough to control them. It is a waste of time for students to play games and sending messages on their mobile phones. Therefore, it is easy to make students contact with each other. In my opinion, following the fashion was understandable. But as middle school student, we should put all our energy into our study.

Yours truly,

Mary

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。

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(从第11处起) 不计分。

Dear Roy,

    I am glad to receive your letter ask for my advice on how to learn Chinese well.

    Here are a little suggestions. First, it is important to take a Chinese course, as you'll be able to learn the teachers and practice with your classmates. Then, it also helped to watch TV and read books, newspapers and magazines in Chinese whenever possibly.

    Besides, it should be a good idea to learn and sing Chinese songs, so by doing so you'll learn and remember Chinese words much easily than usual. You can also make more Chinese friends. He will tell you a lot about China or you learn Chinese.

    Try and write to me in Chinese the next time.

    Best wishes.

Yours truly,

Li Hua

增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删减:把多余的词用斜线( \ )划掉。

修改：在错词下面划一横线, 并在该词下面写出修改后的词。

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(从第11处起)不计分。

    Last Monday, our class hold a speech contest on the theme of thankfulness. Both of us took an active part in it because we were interesting in it. In beginning, our teacher made a speech, appeal to us to be thankful. After that, many participants impressed us on their wonderful performances. They expressed their love and appreciations to their parents, teachers and people who love them. I learned a lot of from this activity. There are many people around us who have helped us great. We should be grateful to them in return for which they have done for us.

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（从第11处起）不计分。

    Visiting friends is one of the most common thing in our daily life. Usually, it is politely to call a friend before your visit, so close friends often drop in on each other without calling. Some people enjoy surprise visits from friends, but many people did not. In the USA, those people don't like surprise visits may tell his friends to call before they come. This is acceptable because the most people are very busy. Drop in at a busy time can cause problems for the person visiting and the person visited. It's a good idea to ask a friend if he or she mind your dropping in without calling. What you aren't sure whether your friends welcome surprise visits, you'd better call first.