问题补充：
短文改错（共10小题;每小题1分，满分10分）
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。
I went to Shanghai Expo on last week．At the gate I happened to meet some America tourists．I greeted him in English and then we began to chat．I got to know that they were college students travel in China．They are busy taking pictures and were much impressed with the changes had taken place in the past few years．After which, we visited China Pavilion and had a good time．We exchanged our email address so that we could write each other in the future．They thanked me again and again．I was very glad to have a chance to practising my oral English.
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短文改错（共10小题;每小题1分 满分10分）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 每句最多有两处 每处错误仅涉及一个单词的
