1 . The correct passive form of the sentence 'Who opened the door' is -.

• A. By whom let the door was opened?
• B. By whom was the door opened?
• C. Who had the door opened?
• D. By whom the door was opened?

Answer: Option B

Explanation:

2 . Who opened the door?- এর পরিবর্তিত voice হচ্ছে ----

• A. By whom was the door be opened?
• B. By whom was the door opened?
• C. By whom is he door opened?
• D. By whom has the door opened?

Answer: Option B

Explanation: