Ответ:

1. was
2. was, was
3. was, was
4. were? were, were
5. were, was
6. was, was, was
7. were, were
8. was, was
9. was
10. were

1)was

2)was,was

3)Was,was

4)Were,were,were

5)Were,was

6)Was,was,was

7)Were,were

8)Was,was

9)was

10)were