题目内容：

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处错误，每句中最多有两处。每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。

Dear Sir,

Thank you very much for invite me to the summer English course in your school. As for my choice between the two courses, I prefer the four-week course because of this will allow me more time to do some traveling but make a few new friends. Of all the subject I’m learning at school, I like English best. I had been learning English for eleven years but my spoken English remains to be poorly. So I really hope to take this chance to improve them. If possible, I’d like to stay with a family for a couple of days so that I can learn some customs in England, that I’m particularly interesting in. I believe I will have good time this summer.

Yours truly,

Li Hua