【题目】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。错误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。
When I was 12, I met Mary. She came to China with her parents, whom taught English in an university. We soon became good friends. She was fluently in Chinese while I had difficulty with my speaking English. In order to help me with my English, we spoke as much English as we can when we were together. Before long, I could speak English well but at the same time I also made great progresses in my written English. Luckily, a year later, she had to return back to her country with her parents. And we have out of touch with each other ever since. How I miss her!
在线课程【答案】
【解析】此处为定语从句，先行词为parents，所以要用who引导。
University首字母为辅音所以应该用a，不用an。
此处表达她汉语很流利，所以用形容词fluent。
口语应该为spoken English。
根据整句的时态可以知道we spoke as much English as we could when we were together.
此处表达我能说英语很好了，而且我的书面语也有了极大地提高。此处是并列关系，所以用and。
Progress 不可数，不能用复数。
根据语境可知一年后她要回国了，所以应该是不幸的是。
Return就是回去，不能再与back连用。
此处表达我们失去联系，所以用be out of touch