Dear ____________，
Therewill be a ____________(资料)atin ____________(地点)on____________(时光)。Wewould be honored to have you there with us。
Theoccasion will start at ____________(具体时光)。This will be followed by a____________(进一步的安排)。 Ataround ____________(时光)， ____________(另一个安排)。
Ireally hope you can make it。 RSVP before ____________(通知你的最终期限)。
Yours sincerely，
____