Ответ:

1. What were you doing when the fireworks display 2)began?

3) I was looking for you everywhere!

4) brought

5) When I came back to find you you were gone.

6) tried

7) got

8) Did you see

9) started, 10) stood 11) stared

12) was eating 13) didn't see

Объяснение:

Кажется так, надеюсь правильно