The expert should be put in jain for wrong interpretation. He don't know the translation and became expert. In the passive voice, the auxiliary verb "is" is used to form the present tense. The structure for converting an active sentence to passive voice typically includes a form of the verb "to be" (such as "is," "are," "was," or "were") followed by the past participle of the main verb. Here’s the breakdown: Active Voice: "Who starts the pump?" "Starts" is the present tense of the verb. Passive Voice: The subject of the active sentence ("Who") becomes the agent, and the object ("the pump") becomes the subject of the passive sentence. The verb "to start" needs to be in the past participle form ("started"). To maintain the present tense, we use the present form of the verb "to be" ("is"). Therefore, "By whom is the pump started?" correctly uses "is" to match the tense and complete the passive construction.
Q1 Who starts the pump? Correct answer - By whom is the pump started Q2 Who started the pump? correct answer - By whom was the Pump started Since the question was Question 1, hence the woman was right. By using "was" you are changing the present tense to past tense. To maintain the present tense you have to use "is".
