I had a lunch.
When did you have it?
I had it an hour ago.
I've drew a new picture.
When did you drive it?
I drew it yesterday.
I've burnt my hand.
When did you burn it?
I burnt it yesterday morning.
I've read an interesting book.
When did you read it?
I read it last night.
I've finished my homework.
When did you finish it?
I finished it at six o'clock.