Odpowiedź:
1. My mum lived in new York
My mum didn't live in new York
did my mum live in new York?
2.He met her at the park
he didn't meet her at the park
did he meet her at the park?
3.she had long hair
she didn't have long hair
did she have long hair?
4.they were at a party
they weren't at a party
were they at at a party?
chyba dobrze :)