выберите правильное время глагола, present perfect or past simple

a) I have read/read a lot of books when i was at school

b) Have you seen/Did you see any films recently?

c) I have done/did a lot of stupid things in my life.

d) I have bought/bought a new car.

A) I have read a lot of books when I was at school. - Present Perfect

b) Have you seen any films recently? - Present Perfect

c) I have done a lot of stupid things in my life. - Present Perfect

d) I have bought a new car. - Present Perfect

или

I bought a new car. - Past Simple