Directions： You want to invite some friends to a party. Write an invitation letter to them individually：
1) 邀请参加晚会;
2) 说明举办晚会的原因;
3) 将安排哪些活动。
Dear Snoopy，
I am greatly honored to formally invite you to participate in Mr. Guo Jings wedding ceremony with Ms. Huang Rong to be held at Beijing Grand Hotel from 8 to 10 p.m. on April 1， 2007.
As you are a close friend of us， we would very much like you to attend the celebration and share our joy. The occasion will start at seven oclock in the evening， with the showing of their wedding ceremony. This will be followed by a dinner party. At around ten， we will hold a small musical soiree， at which a band will perform some works by Bach and Strauss.
If you do not have any prior appointment on April 1， we look forward to the pleasure of your company.
Yours sincerely，
Li Ming
邀请信包括宴会、舞会、晚餐、聚会、婚礼等各种邀请信件，形式上大体分为两种:一种为正规的格式 (formal correspondence)，亦称请柬;一种是非正式格式 (informal correspondence), 即一般的邀请信。邀请信是在形式上不如请柬那样正规，但也是很考究。
邀请信包括宴会、舞会、晚餐、聚会、婚礼等各种邀请信件，形式上大体分为两种:一种为正规的'格式 (formal correspondence)，亦称请柬;一种是非正式格式 (informal correspondence), 即一般的邀请信。邀请信是在形式上不如请柬那样正规，但也是很考究。书写时应注意:
邀请信一定要将邀请的时间(年、月、日、钟点)、地点、场合写清楚，不能使接信人存在任何疑虑。例如:Id like you and Bob to come to Luncheon next Friday.这句话中所指的是哪个星期五并不明确，所以应加上具体日期, Id like you and Bob to come to luncheon next Friday, May the fifth.
2例题
写作
说明：以ABC公司市场部经理的名义用英语写一封邀请函。
内容如下：
1.定于2017年12月18日在东方宾馆举行产品发布会;
2.发布会上将展示本公司的新产品，并邀请有关专家做相关报告;
3.会后将举行业务洽谈;
4.感谢对方多年的合作，并邀请对方参加;
5.请在11月底前回函确认。
产品发布会：New Product Release
Invitation
It is scheduled that our company will hold a New Product Release on December 18，2017 at Orient Hotel. We will display our new products, and invite relevant experts to make reports. There will be a business discussion after the meeting.
Thank you for your cooperation for many years. You are cordially invited to attend the Release. Please reply to confirm whether you will join before the end of November. We look forward to your attendance.
Yours sincerely,
Zhang Wei
Marketing Manager of ABC Company
An Invitation
May 10, 201X
Dear Blake,
Mrs. White will soon leave for the United States and we will held a farewell party for her which takes place from 6:00 p.m. to 7:30 p.m. on Friday, May 20, 2012 at the School Club. I am very pleased to invite you toparticipatein the farewell party. Another two foreign teachers you know, Mr. Frazer and Miss Gree are also invited. Please join us to say goodbye to Mrs. White. You are hoped to arrive at 5:50 p.m. I look forward to see you on May 20.
Yours sincerely,
Yan Yang
Dear sir/madam:
Im delighted you have accepted our invitation to speak at the Conference in [city] on [date].
As we agreed, youll be speaking on the topic XX from [time] to [time]. There will be an additional minutes for questions.
Would you please tell me what kind of audio-visual equipment youll need. If you could let me know your specific requirements by [date], Ill have plenty of time to make sure that the hotel provides you with what you need.
Thank you again for agreeing to speak. I look forward to hearing from you.
Sincerely yours,
[name]
[title]
Dear Sir or Madam:
We are very pleased to invite Mr. ****** come to our company for visiting and business negotiation. The business trip will start from 30th Oct. 2006 . And because the long business co-operation in future between ****** company. and us, they will come to China for many times. Please note, however, that we dont assume any legal or financial responsibility whatever regarding the presence of ****** in China. All expenses of ******Sjourney to/from China, their stay in China as well as health insurance will be borne by their employers. We send you our kindest regards and best wishes for a pleasant trip.