pls na szybko
1.I was ......... a book when somebody knocked on the door.2.He was watering the plants .......... the thunderstorm began.3. ......... I was driving the car, I saw a deer crossing the road.4.We .......... walking in the forest when we saw a squirrel.5.It wasn't raining yesterday. It .......... snowing.6.It ............ foggy and we couldn't see anything.