题目内容：

短文改错（共10小题；每小题0.5分，满分5分）

假定英语课上老师要求同桌之间交换修改作文，请你修改你同学写的以下作文。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（∧），并在其下面写出修改后的单词。

删除：把多余的词用斜线（＼）划掉。

修改：在错词下面画一横线，并在该词下写出修改后的单词。

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 am writing this letter to express my regret that I can’t go to the Great Wall with you next weekend. It’s really pity. I feel sorry for them and want you to know that happened.

Yesterday, my father, worked in the United States now, informed me that he would be back to home tomorrow. I was very happy when I heard the news. Father and I had not seen each other for two years, but I am really looking forward to this meeting.

I sincere hope that you can be able to think in my position and accept my apology. I would appreciate your allowing me to make another dates to go to the Great Wall.

Once again, I am sorry for any inconvenience I have caused.