Identify the correct passive form of "Who did this?"

প্রশ্নঃ Identify the correct passive form of "Who did this?"

  • ক. By whom was this done?
  • খ. By whom has this done?
  • গ. By whom this has been done?
  • ঘ. By Whom this had been done?

সঠিক উত্তরঃ

By whom was this done?
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