Question

Choose the most suitable passive voice conversion of the given sentence:
Who is using the computer at this moment?

• A. At this moment, who is being used computer?
• B. The computer is being used by whom?
• C. By whom the computer is being used at this moment?
• D. By whom is the computer being used at this moment?

Answer 1

The correct option is D By whom is the computer being used at this moment?

'Whom' should be used to refer to the object of a verb or preposition. Since passive voice is used, the object comes to the fore instead of the subject. Occasionally, the prepositions for, to, by, with, and about may need to be used with 'whom' to ensure the sentence makes sense in passive. Hence, Option D is correct. The rest of the options do not follow the required structure, hence they're incorrect.