Odpowiedź :
1. The entire family was eating lunch when dad come back from work.
2. They were running in the when they saw their neighbor with the daughter.
3. We were finishing the english lesson when the director entered the classroom
4. Mr sparr was standing in a traffic jam in the center of the city when two cars collided.
5. I was walking on a street in gdańsk when i saw young street artists.
6. Marek was running by the river when it falled into the water.