7. dickens shows us how (unhappily/ willingly/ carefully ) young scrooge works for Fezziwig when he and dick wilkins put up the shutters.

The answer is "willingly".

Clear away! There was nothing they wouldn’t have cleared away, or couldn’t have cleared away, with old Fezziwig looking on. It was done in a minute. Every movable was packed off, as if it were dismissed from public life for evermore; the floor was swept and watered, the lamps were trimmed, fuel was heaped upon the fire; and the warehouse was as snug, and warm, and dry, and bright a ball-room, as you would desire to see upon a winter’s night.