Odpowiedź:
1 Pawel couldn't swim.
Could Pawel swim?
No, he couldn't
2 Alan and Eva could cook.
Could Alan and Eva cook?
Yes, they could
3 The boys couldn't open the front door.
Could the boys open the font door?
No, they couldn't
4 Mum could play the piano.
Could mum play the piano?
Yes, she could
Mam nadzieje, że o to chodziło :)