假如你是新华中学的学生李华，你和在上海上学的英国朋友Tom约好下周末去北京旅行，但你因故不能赴约．请根据以下要点用英语给他写一封电子邮件：1表示歉意2解释原因3另约时间．

Question

假如你是新华中学的学生李华，你和在上海上学的英国朋友Tom约好下周末去北京旅行，但你因故不能赴约．请根据以下要点用英语给他写一封电子邮件：1 表示歉意  2 解释原因  3 另约时间．
Dear Tom，
I'm sorry，for I won't be able to
___Looking forward to your early reply．

Yours
Li Hua．

Answer 1

Dear Tom    
     I'm sorry，for I won't be able to go to Beijing with you next weekend，which I have promised．【高分句型】I feel sorry for it and want you to know what happened．（表示歉意）
     Just now，my cousin，Li Qing，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．【高分句型】You know，we haven't seen each other for nearly a year．（解释原因）
     I sincerely hope you can accept my appreciate your allowing me to make another date to show you around Beijing．Once again，I'm sorry for any inconvenience caused．（另约时间）
     Looking forward to your early reply．
                                                                                                                                                                                                                                                                                                                                                                                                               Yours
Li Hua．