1)
1-was
2-was
3-were
4-was
5-were
6-was
2)
1-he was
2-it was
3-were
4-they were
5-she was
3)
1.I wasn't at school ten minutes ago
2.It wasn't very cold last week
3.They weren't happy yesterday
4.We weren't in Paris last year
Объяснение:
если подлежащее в единственном числе ставишь was, если в множественном - were
