一、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 "" 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]
二、Dear sir/madam:
Thank you for your letter of [date].
Im glad that you are also going to [place]
next month. It would be a great pleasure
to meet you at the [exhibition/trade fair].
Our company is having a reception at
[hotel] on the evening of [date] and I would
be very pleased if you could attend.
I look forward to hearing from you
soon.
Yours sincerely,
[name]
[title]
三、Dear sir/madam: