Select the sentence that correctly changes the active sentence into passive voice: "Someone has stolen all the confidential files from the office."
All the confidential files have been stolen from the office by someone.
The active sentence uses the present perfect tense "has stolen", so its passive form must also remain in the present perfect tense.
The present perfect passive is formed with "have/has been" plus the past participle, and since the new subject "files" is plural, the auxiliary "have" is required.
"All the confidential files have been stolen from the office by someone" keeps the tense and the subject-verb agreement correct.
Similar Questions
Select the sentence that correctly transforms the given active voice into passive voice:
"People believe that the scientist discovered a rare element."
Select the sentence that correctly changes the active sentence into passive voice:
"The manager made the employees work overtime."
Important Questions from Active and Passive Voice
Select the option that expresses the given sentence in passive voice.
The Smiths have put up a huge Christmas tree.
Select the correct passive form of the given sentence.
Conduct all the exams in a fair and proper manner.
Directions: Select the correct passive form of the given sentence.
The masons are building the house.
Directions: Select the correct active form of the given sentence.
By whom has this mischief been done?
Select the correct active form of the given sentence.
By whom were you pushed into the mud?
