假设你是新华中学的李华，你和在上海上学的英国朋友Tom 约好下周去北京旅游，但你因故不能赴约。请给他写封Email 1. 表示歉意 2.解释原因 3.另约时间
范文：
Dear Tom,
I am indeed very sorry that I can’t go to Beijing with you next week, which I have promised. I feel sorry about it and want you to know what happened.
Just now , my cousin ,Li qiang ,who left home to Australia for his further study last year, informed me that he would return this Saturday morning and asked me to pick him up at the airport with his family. You know , we haven’t seen each other for nearly a year.
I sincerely hope you can accept my apologies and understand me . I would appreciate your allowing me to make another date to show you around Beijing . Once again, I’m sorry for any inconvenience caused.
Sincerely yours ,
Li hua
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