下面是大明写给他的朋友Tom的信，信中描述了他的烦恼。请你以他的朋友Tom的身份，给他写一封80词左右的回信，在信中指出他的问题并给他提出建议。信的开头已给出，不计入总词数。
Dear Tom,
My classmate, Lucy, bought a new pen. I liked it very much, so I used it without her permission. Unluckily, I broke it. Then I put it back secretly. Now she finds out the truth and is very angry with me. I don’t know what to do. Can you help me?
Yours,
Daming
Dear Daming,
I know your problem._________________________________________________________
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Yours,
Tom