In part 2 of the speaking test you might be asked to describe a party. Here are some part 3 questions that could follow that topic:
1. What types of party do people have, and why are parties important?
People have parties to celebrate special occasions like birthdays, weddings, or the beginning of a new year. I think it's important to celebrate these things because they are landmarks in our lives. Parties are a good way to bring people together, and they're an opportunity to let off some steam.
2. Why do you think some people like parties but others hate them?
Most people like parties because they have a good time at them - eating a nice meal, chatting to friends, or having a dance. People who don't like them might find social situations difficult because they are shy, or maybe they don't enjoy having to make small talk with people they don't know.
3. Do you think parties will become more popular in the future?
No, I don't think anything will change. People have always had parties, and I'm sure they always will in the future. Humans need to socialise and enjoy themselves, and parties are one of the best ways to do that.
PS. I've underlined the band 7-9 phrases.