Verified answer

Resposta:

1. was eating

2. were working

3. was crossing

4. was telling

5. were taking

6. were painting

7. was washing

8. were dancing

9. was writing

10. was doing

Explicação:

Estrutura:
Sujeito + ser/estar no passado + verbo no gerúndio.

I - was
You - were
He/She/It - was
We - were
You (plural) - were
They - were