英语课上，老师要求同桌同学相互修改作文。假设以下作文为你同桌所写，请你对其进行修改。共有10处错误，每句最多两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。
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）不记分。
3 必须按答题要求做题，否则不给分。
Dear Tom,
It is great to receive your email. Now I’d like tell you something which took place in my school yesterday.
In the afternoon we hold a grown –up ceremony for our coming 18 years old birthday. First we made an oath that as grown-up we should have a sense of duty for our social from now on. Then we showed our thanks for to our parents who had gone through hardships to bring us up and teachers who have been educating us patient. And our teachers also gave us cards expressed their good wishes to them. Finally, we put on wonderful performances, singing or dancing. We learned a lot from the activity. I think it’s very important for us. I will never forget the day in my life.
Yours,
Li Hua