1 can well can 1.
I can sing well.
2 fast run Sam can't.
Sam can't run fast.
3 can football Grandad play .
Grandad can play football.
4 skateboard can't Mum .
Mum can't skateboard.
5 very Sally can't well cook.
Sally can't cook very well.
Ответ: I can sing well. Sam can't run fast. Grandad can play football. Mum can't skateboard. Sally can't cook very well.