Ответ:

1 were

2 was, was, was

3 were

4 was

5 weren't, was, was

Ответ:

1. were, were

2. was, was, was

3. were

4. was

5. weren't, was, was

Правило was/were:

I, he, she, it + was/wasn't

You, we, they + were/weren't