Wybierz właściwą formę z podanych.

1. They played / were playing with their dog when I saw / was seeing them.
2. At 11 o’clock yesterday we learned / were learning.
3. I wrote / was writing something in her notebook when she didn’t look / wasn’t looking.
4. Mary waited / was waiting for us when we arrived / were arriving.
5. The phone rang / was ringing when I watched / was watching TV.