Question

who opened the door? voice change

Answer 1

the door was opened by whom

Answer 2

By whom was the door opened?

There are two types of voice.

Active voice and passive voice

The given sentence is an interrogative sentence and this sentence is in active voice we should covert it into passive voice. We should follow the given guidelines -

• First we should check how the question is started with helping verb or with Wh word.
• The given sentence is started with who so we should start passive voice sentence with 'By whom'.
• After by whom we should use helping verb according to the subject and tense. Here in the given sentence tense is past tense and sentence is singular so we should use 'was'.
• We have to use object after that and write past participle of the verb.

Visit the following links to know more about change the voice -

https://brainly.in/question/20112033

https://brainly.in/question/39219520

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