假设你是大明，你的笔友给你来信了。请阅读以下来信，并 根据内容写一封回信。
要求：1．80词左右；2．文中不要出现作者本人的真实信息。
Dear Daming,
     I’d like to tell you something about my “important gift”．It was a beautiful smile．
     When I was nine years old，I went to a new school．As a result，no one knew who I was．I felt lonely．Then one day when I sat  at my desk unhappily as usual，a girl walked to me and smiled．
     Though she said no words，I felt the touch of something bright and friendly and it made me feel happy and warm again．After that she became my good friend．
     As we all know，everybody may feel lonely or be in trouble．Could you tell me something about your “important gift” that touched you or changed your life?

Yours,
Susan

【参考范文】

Dear Susan, 

     I’m glad to read your letter and your “important gift” really touches me. As for me, my “important gift” was my mum’s sad tears. 

     Two years ago, I became a “problem child”, and I was tired of everything. I did everything that was against my parents. That made my mum very sad, but she still loved me as usual.

     One night, I lost my reason and broke a glass, which caused my mum to burst into tears. All at once, her sadness touched my deep heart. Since then, I have completely changed myself.  

Best wishes,
Daming