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：在错的词下画一横线，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。

    It has been a long time since I did anything good for the environment. Feeling responsible to protect the environment, I decided to take the action again. I told my idea to my friends and we planned to plant tree on the hill in the countryside. We came to the foot of the hill and selected a place where looked suitably and settled down. We spend a few hours digging holes and placing the young seedlings. Then we wrote our wishes on cards one to one and buried it deep down the roots of the trees. We also took a lot of pictures. We were such busy that we didn't realize that it was time to go back. I felt really glad that we made difference to the environment.

增加：把缺词处叫个娄子符号（∧），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。

    John Snow was a famous doctor in London. He was such expert that he attended Queen Victoria as her personal physician. But he became inspiring when he thought about helping ordinary people exposed with cholera. This is the deadly disease of its day. Neither its cause nor its cure were understood. So many thousand of terrified people died every time there was an outbreak. John Snow wanted to face a challenge and handle this problem. He knew that cholera would never controlled until its cause was found.

    He became interested in two theories that possibly explained that how cholera killed people. Finally the second theory was proved correctly by him.

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：在错的词下画一横线，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。

    Yesterday, I spent one memorable afternoon with my little friend Tom, which was the child of my neighbors next door. When I reached home after school, I find Tom sitting on the stairs.

    Know he had lost his key, and I invited him to my home. He started to do his homework. Meanwhile, I called her mother and told her what had happened. Soon Tom finished all his homework. Since it was still early, I decided play Chinese chess with him so that he wouldn't feel boring. Tom was very careful and he thought very hard before makes any move. Later, Tom's mother arrived and thanked me for taking care of her sons. Tom said he had an enjoyable afternoon. In fact, I also felt very happily.

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。

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 Sir,

    I've learnt from the notice that you're looking for an English editor for us school paper. I'm written this letter to apply for the position.

    I'm Li Hua, Senior Three student in our school. In my view, I met your requirements: for one thing I'm willing to devote some of my spare time to serve others; for another I'm good at both English or Fine Arts. I'm either skilled in using computers. I would be glad if you could offer to me an opportunity for an interview.

    I'm looking forward to your kindly reply at your earliest convenient.

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。

    I used to delay things until deadlines, that caused me much trouble. Therefore, I thought of some ways to get rid the bad habit. First, I took a shower right after I got home from school. It refreshed me but made my thoughts more active. Furthermore, in order to avoid being continual disturbed by my cellphone, I left them with my parents. The final strategy I use was scheduling. I managed to planning my days ahead of time so that I could break up my tasks rather than having too many work to do on the last day. By using these simple technique, I've improved my efficiency and made a good use of my time.

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。

    Union is strength. Whenever you're faced with difficulties or in a dilemma, cooperation plays an important part in getting you out of trouble. There was a time when I was too proud that I overlooked my classmate, refusing to work together with them. Therefore, it was no doubt that I was left alone, suffering from loneliness and failure. Unfortunately a teacher impressed on me the value of cooperation. From then on, I learned to help others and turn to my friends for the help whenever I had difficulty finish a task on my own. Surely cooperation made a great difference. Now I am getting well with my friends. My experience teach me that only if we attach great importance with cooperation can we go beyond ourselves. As the saying go, "United we stand; divided we fall."