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 June 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 accpet our

invitation if it is convenient for you.please call me at 44876655 if you have any questions.

I am looking forward to your reply.

With best wishes,

Li Hua