题目内容：

    日前长城再次因为被乱涂乱画（scribbling）成为热点话题。针对这一现象, 你们学校开展了宣传保护古迹的演讲比赛, 假如你是李华, 你们班交换生Jack询问你关于比赛的情况, 请你写一封回信, 告诉他演讲比赛什么时候举行, 并分享你关于演讲的想法。

提示词语: harmful, history, culture, volunteer, famous sights

提示问题:

●When will we hold the speech?

●What would you like to share with Jack about making the speech?

Dear Jack,

I'm glad to receive your letter.

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If there is anything more that I can help with, please let me know.

Yours,

Li Hua.