Respuesta:
I hadn't completed the task - Had you completed the task?
Mary had bought candies - Had Mary bought candies?
He had lived in Florida - He hadn't lived in Florida
You had worked hard - Had you worked hard?
Marco had drunk - Marco hadn't dunk
Explicación:
El pasado perfecto afirmativo se construye de la siguiente manera:
Sujeto + HAD + Verbo en Participio Pasado + Complemento
El pasado Perfecto Negativo:
Sujeto + HADN'T + Verbo en participio pasado + Complemento
El pasado perfecto Interrogativo:
HAD + Sujeto + Verbo en participio pasado + Complemento?