短文改错（共10小题，每题1分，满分10分）
假如英语课上老师要求同学们交换修改作文，请你修改你同桌写得一下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加上一个漏字符号（∧），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，并在该次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11处起）不计分。
I have made a new friends recently. His name is Jackson, and he is from the America. How did we get to know each other? You may think we are pen-friends, and you are wrong. We actually have never written to each other before we met. Here is the story. A week before, there was a summer camp in our school. Some American students came to join in us. I was very good on English, especially spoken English, so I was chosen to take part this camp. Jackson was very interesting in Peking Opera, and I liked it, too. When I told Jackson that, he felt very excitedly. We talked a lot about Peking Opera. He said he had a very good time and hoped he would come again quite soon.