Transposer chacune des phrases suivantes au past perfect progressif.
She had cooked dinner very carefully.
I had accomplished some tedious chore.
You had whistled during the whole walk.
He had delivered parcels all day.
They hadn't focused enough on their studies.
Had she taken care of her grandmother?
My sons had built the garden shed.
I had forgotten my duties.
Clara had worked efficiently.
My brothers had spent their day in front of the computer.