Select the option that expresses the given sentence in passive voice.
An unexpected call disturbed Maria terribly which compelled her to stop the performance.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Maria was disturbed terribly by an unexpected call which compelled her to stop the performance.
It is because the object is changed into the subject while converting a sentence from an active voice to a passive one.
So, the "unexpected call" now becomes the object and "Maria" the subject.
Moreover, the verb of the active sentence is already in the past participle form, we do not need to disturb it.