Correct option is B
The correct passive voice of the given sentence is
Was that noise heard by you?
Rules of Conversion from Active to Passive:
·
Active Voice Structure:
·
Did + Subject + Base Verb (V1) + Object?
· (Did you hear that noise?)
·
Passive Voice Structure:
·
Was/Were + Object + Past Participle (V3) + by Subject?
· (Was that noise heard by you?)
Explanation:
· "Did" indicates past simple tense. In passive form, we use
"was/were + V3".
· The object
"that noise" moves to the subject position.
· The subject
"you" moves to the agent position and is preceded by "by."
· "Did hear" changes to "was heard."
Incorrect Options Explanation:
· (a) "Is that noise heard" is in the present tense, which does not match the past tense of the original sentence.
· (c) "Wasn't that noise heard by you?" introduces a negative meaning not present in the original sentence.
· (d) "Has that noise been heard" is present perfect, which is incorrect for past simple transformation.