You want to invite some friends to a party。 Writean invitation letter to them individually：
I am greatly honored to formally invite you toparticipate in Mr. Old Fish’s wedding ceremony withMs. Fujiwora to be held at Beijing GrHotel from 8to 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 andshare our joy. The occasion will start at seven o’clock in the evening, with the showing of theirwedding ceremony. This will be followed by a dinner party. At around ten, we will hold a smallmusical soiree, at which a bwill perform some works by Bach Strauss.
If you do not have any prior appointment on April 1, we look forward to the pleasure ofyour company.