Answer:
Heya Mate!
<h2>The office had been cleaned by the cleaner.</h2>
Explanation:
- <em><u>Active voice </u></em><em><u>:</u></em><em><u>-</u></em><em><u> </u></em>The subject of the verb is the person or thing doing the action.
- E.g. - Eva cooked the food.
- <em><u>Passive </u></em><em><u>voice</u></em><em><u>:</u></em><em><u>-</u></em><em><u> </u></em> Action is done to the subject.
- E.g - The food was cooked by Eva.
Hope it helps ya~
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Measurement is the process of comparing the unknown quantity with a known fixed quantity of the same kind
I don’t understand the question what fo you mean
