1. were you doing
was trying
2. found, immediately went, turned
3. said, was, need
4. arrived, was not, was working in the garden
5. was also watching
6. called, were not, was, was studying
7. walked, was talking, were busily working
8. was watching
9. was, was not listening
10. called, was just thinking
11. was crossing, striked
12.were busily bargaining, trying
Hope it helps you! Please do comment whether it is useful or not