假定你是李華，你的美國朋友David來信詢問第28屆全國圖書交易博覽會（the 28th National Book Expo）的情況。請你給他寫一封回信，簡介該博覽會。要點如下：
（1）舉辦時間和地點：2018年9月25～27日，山西省太原市。
（2）展出圖書：約26萬種。
（3）博覽會的其他活動。
（4）博覽會的目的和作用：倡導全民閱讀，提供交流平臺。
注意：
（1）詞數80左右：
（2）可適當增加細節，以使行文連貫。

Dear David，
            
Yours，
Li Hua

【考點】提綱作文．

【答案】Dear David，
I'm glad that you are interested in the 28th National Book Expo.Now I'd like to tell you about it.
The 28th National Book Expo was held from September 25 to 27，2018 in Taiyuan，Shanxi Province.At the Expo，about 260，000 titles were exhibited，with more than half being new books.The Expo included academic discussions，new releases and recitation contests.Some famous authors like Wang Meng and Cao Wen xuan were invited to the Expo to share their experience and pleasure in reading with readers.
During the three days，over 290，000 people visited the fair and more than120 million copies of books were sold.The annual book expo not only promotes nationwide reading among Chinese，but also provides readers with a platform to have cultural activities and exchange views on different subjects.
If you have any questions，do not hesitate to ask me.
Best wishes！
Yours，