Identify the correct Passive Voice form of the following sentence:
Do machines make these articles?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Are these articles made by the machines.
This passive construction transforms the active voice sentence "Do machines make these articles?" into passive voice by placing the object ("these articles") at the beginning of the sentence, followed by the verb in the past participle form ("made"), and then the agent ("by the machines").