Correct the sentences. Three of them are OK.

Popraw zdania błędne. Trzy są poprawne. Jeżeli uważasz, że zdanie jest poprawne, wpisz "OK" w pole odpowiedzi.
1. Did you swam in the sea on holiday?
2. Did you did homework last weekend?
3. You made breakfast in the morning?
4. She heard me?
5. Did you drink cold juice yesterday?
6. Was you see that?
7. Did your brother eat ice-cream last Sunday?
8. Did you ironed your shirt yesterday?
9. Did your friends were at school last week?
10. Did Margaret buy bread yesterday?
11. Mike came home late again last night?
12. Did you can go out after 10 o’clock in the evening when you were a child?