Question

who did this - change into passive voice
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Answer 1

Answer:

This was done by whom.

$\dag{\boxed {\underline{\sf{\underline\orange{hope \: it \: helps \: u }}}}}\\\\\dag{\boxed {\underline{\sf{\underline\orange{Please \: mark \: as \: BRAINLIEST }}}}}$

Answer 2

Answer:

By whom was this done?

or

This was done by whom?

Explanation:

Hope it's useful.

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