Odpowiedź:
1. I was in a helicopter.
2. Were you at home?
3. The pupils weren't on time.
4. Where was our teacher?
5. She wasn't in the laboratory.
6. It was fantastic!
Wyjaśnienie:
Past Simple warto znać na przyszłość ponieważ z niego się potem robi zdania typu PC + when + PS albo PS + while + PC ale to dopiero kiedyś