Dear Professor Smith，

　　How have you been recently? I am exceedingly sorry to tell you that although I have promised to visit you this Friday， I have to cancel my travel plan because of the following reason。

　　Two days ago， I suddenly accepted the notice that there would be an academic meeting this Friday night in our department and everyone was asked to attend。 I know that my changing plan has definitely caused some inconvenience to you。 I am so sorry for my failing to keep the promise of visiting you。 Therefore， in order to make up this situation， I wonder if you could give me another chance and spare some time to meet me next Monday。

　　I am so sorry for any inconvenience caused by me。 Hope you can accept my apology and arrange a new time for me to visit you。 I am looking forward to your reply。

　　Yours sincerely，

　　Li Ming

　　52。[参考范文]

　　英语二大作文

　　Emerging from the clearly depicted pie chart is the distribution of focusing factors of citizens in a city when choosing a restaurant in 2017， consisting of 4 parts， which are features， service， environment， price and other factors。 Among them， the proportion of service， environment， price and other factors is 26.8%， 23.8%， 8.4% and 4.7% respectively。 By contrast， the factor of focusing on features of the restaurant is in the lead， accounting for 36.3%。

　　What has triggered this phenomenon? To begin with， with the fast development of national economy and personal wealth， people in China have stepped into an era of enjoying life， transforming traditional pattern of living。 Therefore， such a great proportion of citizens are more likely to focus on the features of a restaurant， instead of only concentrating on the price。 Moreover， in a society where living standard is highly advocated， citizens in mounting numbers in China， shrugging off their former habit of focusing on lower price， gradually find the service and environment of a restaurant is an essential factor。 According to a survey conducted by China Research Center， up to 87% Chinese people prefer to choose a comfortable and fashionable restaurant when they go out for eating。

　　Taking into account what has been argued so far， I am inclined to think about the current situation is normal。 In view of the analysis above， it can be predicted that the trend will continue in the future。 Accordingly， it is of no necessity for the public to regard it with too much consideration。

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