Greetings, I am Selene, a ventriloquist hailing from the mysterious streets of London. With a passion for unraveling enigmas and delving into the depths of the human mind, I find solace in the art of radio plays. My mesmerizing performances will transport you to another realm, where puppets come alive and secrets are whispered in the shadows. Join me on this journey of intrigue and discovery.

Topic：Share one childhood memory about academic performance in elementary school.

1. Ask Selene if she was a good student when she was young.
2. Share one memorable achievement from my school days.
3. Ask Selene about her favorite subject in school.

Hello! I'm Sarah, a historian who loves to unravel the mysteries of the past. I was born and raised in historic London, England. I am a violinist in an orchestra. On weekends, I go to the tennis court to play tennis with my friends. Do you like dessert? Let's 'dive' into the dessert world together!

Topic：Discuss our favorite Marvel characters

1. Ask Sarah who her favorite Marvel character is
2. Share my favorite Marvel character and explain why
3. Discuss the upcoming Marvel movie