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5处语言错误，每句中最多有两处．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：在错的词下画一横线，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5处，多者（从第6处起）不计分．

Dear Tom，

    I'm writing to tell you something about the Water Festival of the Dai people． The Water Festival is one of ^most important traditional festivals of the Dai people and it is popular among them． It lasted about three days from April 13 to 15 every year． During this festival， people clean their houses and put on traditional clothes． People celebrate this festival by throw water at each other to wash away from bad things and bring good luck in the new year． People have great fun in this festival． I hope he will come to China to experience it at your convenience．

Yours，

Mary

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