Choose the correct passive voice transformation of the sentence:
Why did the brilliant detective suddenly solve the complex mystery?
Show answer & explanation
Correct answer: A
Explanation
The original sentence 'Why did the brilliant detective suddenly solve the complex mystery?' is in the simple past tense (indicated by 'did solve'). To transform an active voice sentence into the passive voice while maintaining the simple past tense for a question, the structure should be:
Question word (Why)
Form of 'to be' in the simple past tense (was/were)
Object of the active sentence as the new subject (the complex mystery)
'by' + original subject (by the brilliant detective)
Option A follows this structure correctly.