道歉信(一) 假如你是李华，你的好友Tom想约你明晚和他家人共进晚餐，但你因故不能应约。
请根据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.弥补方法。
注意: 1.词数80左右; 2.可以适当增加细节Dear Tom,Thank you for your invitation to diner at your home tomorrow evening.Unfortunately, it is much to my regret that I cannot join you and your family, because I will be fully occupied then for an important exam coming the day after tomorrow. I feel terribly sorry for missing the chance of such a happy get-together and I hope that all of you enjoy a good time. Is it possible for you and me to have a private meeting afterward?If so, please don’t hesitate to drop me a line about your preferable date, I do long for a pleasant chat with you.Please allow me to say sorry again.Yours,Li Hua(二) 假如你是李华，你的朋友Tom邀请你下周去他们学校参加文化交流活动并向外国朋友介绍中国的传统绘画，但你忙于准备考试，不得不谢绝邀请，根据下面要点谢一封信:1.谢绝邀请2.说明理由3.推荐朋友Mary参加，并说明理由。
Dear Tom,Thank you very much for your invitation.I'd like to accept it and take the opportunity to introduce the traditional Chinese painting to foreign friends, but I'm sorry to inform you that I can't. The reason is that I am busy preparing myself for the coming final examination. I strongly recommend my friend Mary, who is the most suitable choice to take my place. She began to learn painting at an early age and is equipped with traditional Chinese painting, which, together with her active personality and perfect spoken English will help make your activity a success.Sorry again for any inconvenience caused by my absence. Best wishes！Yours,Li Hua(三）(2010年山东卷)假设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游，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。
注意: 1. 词数80字;2.可适当增加细节。
Dear Tom,I'm very sorry that I can't go on a trip to Beijing with you next weekend, which |I have promised you. I'm writing to tell you the reason for it.Just now, my cousin, Li Ming, who went abroad for further education last year, informed me that he would return the next Saturday morning. He asked me to pick him up at the airport with his parents. As you know, we haven't seen each other for about a year, So I'll have to help him in the first place.I really hope that you can accept my apology and understand me. I would appreciate if you allow me to fix another time to show you around some places of interests in Beijing.Yours,Li Hua(四)(2016全国卷3)假定你是李华，与留学生朋友Bob约好一起去书店，因故不能赴约。
请给他写封邮件，内容包括: 1.表示歉意; 2.说明原因; 3.另约时间。
注意: 1.词数８０左右Dear Bob,I'm sorry to say that I cannot go to the bookstore with you on Friday afternoon. I have just found that I have to attend an important class meeting that afternoon. I hope the change will not cause you too much trouble.（we made an agreement last week that …. But I am sorry to inform you that the arrangement has to be canceled.）Shall we go on Saturday morning? We can set out early so that we'll have more time to read and select books. If it's convenient for you, let's meet at 8:30 outside the school gate. If not, let me know what time suits you best. I should be available any time after school next week.Looking forward to your early reply.Yours,Li Hua（五）假如你是李华，你从朋友Chris处借的一本词典不幸遗失。
现在，请用英文给他写封信, 内容包括:1. 告知词典遗失并致歉;2.描述遗失经过;3.承诺一定赔偿。
注意: 1.词数80左右; 2.可以适当增加细节，以使行文连贯。
Dear Chris,I'm sorry to tell you that I've lost your dictionary.Now I'm expressing my deepest apology for my carelessness.Actually, I put the dictionary in my schoolbag after we met in McDonald' yesterday. But to my sorrow, it was stolen on my way home. I tried to get it back but failed. I promise that I'll buy you a brand new dictionary next week.I am terribly sorry for any inconvenience I have caused you. Please accept my sincere apology.Yours,Li Hua （六）假定你是李华，上周从外教Jackson处借得一本英文杂志。
原定本周六下午归还，但你因某种原因不能按时还书。
请给他写-封电子邮件说明情况，内容包括:1. 表示歉意2.说明原因3.另约时间，注意:1.词数80左右: 2.可适当增加细节，以使行文连贯。
Dear Jackson,I’ m sorry that I can't r eturn the English magazine to you on Saturday afternoon as scheduled.On my way home yesterday, I got caught in the heavy rain and I had a bad cold. The doctor advised me to stay in bed for two days. So is it convenient for you if we meet next Monday morning? If not, please let me know what time suits you best.I hope the change will not cause you too much trouble.Yours,Li hua(Failing to return your English magazine as scheduled, I 'm writing to extend my sincere apology for breaking my promise.)（七）假如你是李华，是红旗中学的一-名国际班学生。
你已通过电子邮件成功发送了外教布置的实验汇报作业，经过再次检查，你发现在已提交的实验报告中，误将一个数据输错。
请给外教Richard 写一封邮件说明情况。