Mr. Smith couldn't open the door because his naughty boy _______ it from the inside

There are many____ ____in the____.

1).介绍写邮件的目的；

2).晚会时间、地点：9月30日晚6点、学校报告厅：

3).晚会内容：同学们表演节目、吃月饼、赏月。

注意：1).词数100左右；2).可以适当增加细节，以使行文连贯；3).开头与结尾己给出，不计入总词数。

Dear Mr. Henry,

                                                                                                                                                       Yours sincerely,

                                                                                                                                                                     Li Hua