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Who is creating this mess?

  • A.Who has been created this mess?
  • B.By whom has this mess been created?
  • C.By whom this mess is being created?
  • D.By whom is this mess being created?

Answer: D

Correct answer: By whom is this mess being created?

Three things must hold at once: the tense stays present continuous, so the passive is is being created; the interrogative subject who becomes the agent by whom; and because it is a question the auxiliary comes before the subject. Only the keyed option does all three.

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