【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．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】
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．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．
Dear Jack，
It's really a pleasure to hear from you．As everyone knew，great importance is attached to birthdays and their celebrations．
Chinese students celebrate their birthdays with different ways．But the most commonly way is to have fun drinking，singing and dancing．Just on one's birthday，one usually receives nice gifts and good wishes being presented by friends and parents．Sometimes，parents will prepare a special birthday party for their child．
Surely celebration is one of the most important activities in one's life，and even meaningful things than that can be carrying out．For example，you can buy some flowers or cook an usual meal for our parents on that very day．It is through these deeds，I believe，which we express thanks to our parents in return for their love．