Change the sentence into passive -`Who opened the door`?
Was the door opened by whom?
By whom was the door be opened?
By whom the door was opened?
By whom was the door opened?
Explanation:
Correct Answer is: By whom was the door opened?

Was the door opened by whom?
By whom was the door be opened?
By whom the door was opened?
By whom was the door opened?
Correct Answer is: By whom was the door opened?

I water the plants. The word `water` is used as- Option A: verb , Option B: adverb , Option C: Noun, Option D: Pronoun, correct answer is: verb
Identify the word that can be used as both singular and plural: Option A: wood , Option B: issue , Option C: fish, Option D: light, correct answer is: fish
`He pocketed the money.` In the sentence, the word `pocketed` has been used as a/an . Option A: Noun , Option B: Verb , Option C: adverb, Option D: Preposition, correct answer is: Verb
I have told you twice. Here `Twice` is- Option A: Adverb , Option B: Adjective , Option C: Noun, Option D: Preposition, correct answer is: Adverb
There has been a breakthrough in the treatment of dengue patients. Here `breakthrough` is a/an- Option A: adjective , Option B: verb , Option C: noun, Option D: adverb, correct answer is: noun