Ответ:
1. Jane had cooked the breakfast.
2. Fiona had visited her grandma
3. You had played chess.
4. They had sung a song.
5. Ben had broken the rules.
6. They had won the races.
7. She had brushed her teeth.
8. Helen had emptied the dishwasher.
9. They had swum in the lake.
10. we had enjoyed our holiday