First of all, dear sir/madam,

I'm glad that you accepted our invitation to speak at the conference.

Held in [city] on [date].

According to our agreement, you will speak on the subject from [time] to [time]. over there

There will be extra time for questions.

Can you tell me what kind of audio-visual equipment you need? If you can let me know your specific requirements.

By [date], I will have enough time to ensure that the hotel provides you with what you need.

Thank you again for agreeing to speak. I look forward to hearing from you.

You are sincere,

[Name]

[Title]

Second, dear sir/madam,

Thank you for your letter [date]. I'm glad you're going to [the place] next month. It will be my pleasure.

See you at the [exhibition/fair].

Our company will hold a reception in [hotel] on the evening of [date], and I will be very happy if you can attend.

I look forward to hearing from you as soon as possible.

You are sincere,

[Name]

[Title]

Third, dear sir/madam,

[organization] very much hope that people from your company can speak on [topic] at our meeting.

As you may know, the mission of our association is to promote. Many of our members are right

Your company's achievements in.

Enclosed is a preliminary schedule of our meeting, which will be reviewed in a few weeks. I'll call you [date] to see who it is.

Your company is willing to talk to us. I can assure you that we will make every effort to facilitate the speaker.

You are sincere,

[Name]

[Title]

Fourth, dear sir/madam,

We'd like to invite you to an exclusive exhibition of our new products. The demonstration will be held in [place] at [time] on [date]. There will be a reception at [time]. We hope you and your colleagues can attend.

[Company] is a leading manufacturer of high quality. As we all know, the recent technological progress has made it more and more affordable for the public. Our new models provide excellent quality and complex economy, and their new features make them have obvious advantages over similar products from other manufacturers.

We look forward to seeing you on [date]. Just call our office at [phone number] and we will be happy to arrange a seat for you.

You are sincere,

[Name]

[Title]

Verb (abbreviation for verb) Dear Sir/Madam:

On [date], we will hold a party to celebrate the retirement of President [name] of [company]. you are

You are cordially invited to participate in the celebration from the afternoon of [date] to [location] [hotel].

[Name] has been the president of [Company] since [year]. During this period, [Company] expanded its business from to. Now, we have the opportunity to thank him for his exemplary leadership over the years and wish him a happy life after retirement. Please join us in saying goodbye to [name].

[Date] See.

yours respectfully/sincerely

[Name]

[Title]