Question : Select the option that expresses the given sentence in active voice.
Was the book written by an unknown author?
Option 1: Did the book write an unknown author?
Option 2: Was the book not written by an unknown author?
Option 3: Was the unknown author reading the book?
Option 4: Did an unknown author write the book?
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Correct Answer: Did an unknown author write the book?
Solution : The correct choice is the fourth option.
Active voice emphasises the doer of the action, while passive voice emphasises the receiver. To convert passive voice to active, we make the subject perform the action and rephrase the verb.
The structure of the active sentence in the case of the simple past interrogative sentence is: "Auxiliary verb + singular subject + base form of the verb + object?"
Therefore, the sentence in active voice is: "Did an unknown author write the book?"
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