Odpowiedź:
Ex.2 pierwsze zdj
2. Someone had dropped a bowl of food.
3. Had you met him before today?
4. I'd eaten something earlier.
5. You hadn't read the recipe carefully.
6. She'd eaten too much.
Ex.2 drugie zdj
1. had had
2. had left
3. hadn't seen
4. Had you studied
5. had changed
6. hadn't studied
Wyjaśnienie: Pozdrawiam ;] W razie pytań pisz śmiało.