Who wrote this book ?
1) By whom is this book written ?
2) By whom was this book written ?
3) By who was this book written ?
4) By whom were this book written ?
Answers
Answer: The correct option is: "By whom was this book written?"
Explanation: This sentence is in the past passive voice, which is the form used when the subject of the sentence is the recipient of the action described by the verb. The main verb "written" is in past participle form, indicating that the action of writing has been completed and the auxiliary verb "was" is used to indicate the past tense. The relative pronoun "whom" is used as the object of the preposition "by" to indicate that it is referring to the agent or doer of the action (i.e. the person who wrote the book).
In active voice sentences, the subject of the sentence performs the action described by the verb. For example, "John wrote the book" is an active voice sentence, because the subject "John" is performing the action of writing.
On the other hand, in passive voice sentences, the subject of the sentence is the recipient of the action described by the verb. The verb is conjugated in a way that the object of an active sentence becomes the subject. For example, "The book was written by John" is a passive voice sentence, because the subject "the book" is the recipient of the action of writing, and the object "John" is the agent or doer of the action.
Active voice is more direct, clear and less wordy, it is often considered more appropriate in academic and formal writing, whereas passive voice can make the sentence sound more formal and impersonal, it is more often used in scientific and technical writing, which focus on the information rather than the agent.
Active voice examples- "The dog chased the cat."
"The teacher graded the papers."
Passive voice examples- "The cat was chased by the dog."
"The papers were graded by the teacher."
Learn more about Active and Passive voice here - https://brainly.in/question/1677438
Learn and see more examples of Active/Passive here- https://brainly.in/question/5788831
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