A. A simple "thank you" will be great, and you can sing a song for your parents and friends. I believe they will be happy when they see what you do.
B. Card games, hide-and-seek and musical chairs are interesting and popular with many people. You can play any of these games with your friends. Also, you can prepare a prize for the winner.
C. It's a good idea to ask some of your friends to help you clean the house. Don't always ask your parents to do that for you. After all, that is your own work.
D. Why not buy some snacks and drinks? You can also ask your mother to cook for you if she cooks very well. I believe your friends will love them and enjoy themselves.
E. You can invite all of your friends to come to your party. The more friends you invite, the more interesting your party will be.
F. There are many ways to do it. You can leave messages, call them or write to them. Don't forget to tell them when and where you will have the party.