English MCQ #909

English MCQ #909

1. Question 1

   Q1. Change the voice: Who designed a car?

   • A) By whom a car designed?
   • B) By whom a car had designed?
   • C) By whom was a car designed?
   • D) By whom was a car being designed?

   Answer: By whom was a car designed?

   Explanation: In passive voice for interrogative sentences, the auxiliary "was" moves before the subject: "By whom was a car designed?"