Change the voice: Has anybody done all the work?

The work has been done by anybody.

Has all the work been done by anybody.

Have all the work been done by anybody.

None of these

Active voice: Has anybody done all the work?

Passive structure: Has + been + past participle

Subject ("anybody") becomes the agent, and object ("all the work") becomes the subject.

Passive: Has all the work been done by anybody?