根据以下信息,补全下面这份正式邀请函的正文内容。 You are the Secretary of the Old Students' Association (校友会), Mayo School, Ajmer. The 20th Alumni (校友) Meet will be held on Sunday, the 28th Sept. 20XX at 8.00 p.m. at Palace Hotel. Write invitation letters to ail the old students of the school to attend the meet. 以下是邀请信的不完整稿件 Old Students' Association Mayo School Ajmer Dear Alumna/Alumnus (女校友/男校友), Sub: 20th Alumni Meet The 20th Alumni Meet of Mayo School, Ajmer will be held _________1___________ at _____2______ Ajmer. Old students, along with their spouses will be our guests of honour. Kindly assemble at 8.00 p.m. in the banquet (宴会) hall for a get-together, dance and dinner party. Please confirm your seats by sending ₹ 500 to the undersigned. Ayush K. Joshi Secretary