请按作文地带提示：假如你是李华，写信邀请某老师(Mr liuxuepaper)来他们学校当演讲比赛评委。时间自拟。地点在学校教师，参赛选手有多位。李华写信请老师来。

From liuxuepaper's on possible version:

Dear Ms.Smith,
 I'm Li Hua,Chair of the Student Union of Yucai Middle School, which is close to your university. I'm writing to invite you to be a judge at our English speech contest to be held in our school on Jun 15. It will start at 2:00 pm and last for about three hours. Ten students will deliver their speeches on the given topic “Man and Nature”. We hope that you will accept our invitation if it is convenient for you. Please call me at 26735287 if you have any questions.

 I am looking forward to your reply.

With best wishes,

Li Hua

作文 地带提供翻译：

亲爱的斯密斯：

我是紧挨您所在大学的育才中学学生会主席李华，我此番写信的目的就是想让您在6月15日下午2：00来作为评委来出席我们的英语演讲比赛，大概会持续3个小时时间。有十位选手参与以“人与自然”为主题的演讲。我们希望您如果方便的话能够接受我们的邀请。如果您还存在一些疑问，请您致电：26735287

期待您的回信-作文地带。

良好的祝愿，

李华