I am glad to invite you to a christmas party. My family will hold it tomorrow evening at home, it will begin at about 18:00. Everything is ready and I will assure you that the food is very tasty and the activities are funny.
I wish to see you then. I am awaiting for your reply.
Dear XX: I would like to invite you to go camping with me. The detailed time of this activity is XX. And i have also invited XX, XX and XX. We will meet at the bus stop right next to your flat. During the camping, we can pick some fruits, make a tent, and maybe put up a camp fire. Hope you like it. And by the way, you may also give us some your own idea! If you have made your decision, feel free to notify me. Yours,XX
I'm glad to have received your letter and I'm writing to invite you to join us in a trip this Sunday morning. The destination is the Green Island which is located south of the Ming Mountain. At 8:00 am on January 12th, we will gather at the Times Square and set off for the Island at 8:10 am. Make sure that you get on the bus on time and bring your sleeping-bags because we are going to spend the night in the open air. After we arrive on the Island, we will go mountain climbing. Remember to bring your own camera so that you can take some good photos. In the evening after watching the sunset we will put up tents at the foot of the mountain and cook over a camp fire. I'm sure we will have great fun!
Looking forward to your reply.