What is the passive voice of 'Who did this'?

A By whom this has been done?

B Whom did this?

C By whom was this done?

D Who has done this?

Solution

Correct Answer: Option C

Who যুক্ত past indefinite tense এর passive voice এর structure :By whom +was/were +obj কে sub +verb এর past participle . correct : By whom was this done

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