Select the option that expresses the given sentence in active voice.
Was the book written by an unknown author?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Did an unknown author write the book?
Type of sentence: Interrogative (Yes/No question)
Tense: Simple Past Tense
Given voice: Passive voice
Subject: An unknown author
Object: The book
Structure for conversion:
Active: Did + Subject + base verb + object?
Passive: Was/Were + object + past participle + by + subject?
Converted sentence: Did an unknown author write the book?
Hence, the chosen option is correct.