I have some good questions to be answered with the past tenses, but first I would like to remind you....
Past simple: an action finished in the past.
Present Perfect: an action that began in the past and lasts until today or to express an experience.
Used to: Actions that you performed some time ago but you don´t now.
The questions are the following:
1)What good/bad memories have you got from primary school?
2.What is something you have made you are proud of?
3.What was your most embarrasing moment? What happened?
4.What is the best decision you have ever made?How did it help you?
5. What is the worst mistake you have ever made? What did you learn from it?