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。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(Λ)，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。

Dear Helen,

Thank you so much for your party at Christmas Eve. All of them enjoyed it very much. We liked the dishes you had cooked but we were happy to learn the English songs you taught us. We hope you’ll teach us a lot many songs in the future. We’re leaving from our hometowns to spend the winter vacations. It seems that much of us are homesick before being away from home for such a long time. What are your plans? Will you join in the tourist group organizing by our school? We are busy prepare for our trips. Please excuse us for not able to say goodbye to you.

We hope you’ll have a good time.

Yours,

Xiao Hua