As an AI language model, I can provide you with a list of questions and useful phrases for your speaking class. Here are some suggestions:

1. Technology: - How has technology changed your life? - What are the advantages and disadvantages of smartphones? - Do you think technology has made people more or less connected? - How do you stay updated with the latest technological advancements? - Can you imagine a world without technology? Why or why not?

Useful phrases: - In my opinion, technology has greatly improved our lives. - One of the main benefits of technology is… - On the other hand, technology can also have negative effects, such as… - I believe that technology has made communication easier/more difficult because… - In conclusion, technology is a double-edged sword.

1. Cinema: - What is your favorite movie genre and why? - Do you prefer watching movies at the cinema or at home? Why? - Who is your favorite actor/actress and why? - What is the most memorable movie you have ever watched? Why? - Do you think movies have the power to influence society? How?

Useful phrases: - Personally, I am a fan of… - I enjoy watching movies at the cinema because… - The reason why I admire this actor/actress is… - The most memorable movie I have ever watched is… because… - Movies can definitely shape people’s opinions and beliefs.

1. Music: - What type of music do you enjoy listening to? Why? - How does music make you feel? - Do you play any musical instruments? If so, which ones? - Who is your favorite musician/band and why? - How has music influenced your life?

Useful phrases: - I am a big fan of… - Music has the power to evoke various emotions, such as… - Unfortunately, I don’t play any musical instruments, but I appreciate… - My favorite musician/band is… because… - Music has played a significant role in shaping my personality.

Remember to encourage the student to express their opinions and provide reasons for their answers. After the discussion, you can provide feedback on their fluency, vocabulary usage, and ability to express their thoughts clearly. Additionally, you can ask the student if they have any questions or concerns about online teaching.