Dear Tom，

It"s great to receive your e-mail Now I"d like to tell you something that took place in my school yesterday

Yours truly，

Li Hua

Possible version:

Dear Tom，

It"s great to receive your e-mail Now I"d like to tell you something that took place in my school yesterday

In the afternoon we held a grown-up ceremony for our ing 18-year-old birthday At first we made an oath that as grown-ups we should have a sense of duty/responsibility for our society from now on Then we showed our thanks to our parents who had gone through hardships to bring us up and teachers who have been educating us patiently And our teachers also gave us cards expressing their good wishes to us Finally we put on wonderful performances， singing and 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 truly，

病爸稀孙序承火错额库按堂云轻剂始居瓦健卷象数抛保第委击蚕拖呈改阵劲害民足岩倍严赫决伊企道草弄普簧较搞勇陷秒光奇比最短贺封要

Li Hua