Question

They have contacted everyone concerned (Change the voice):

• A. Everyone have been contacted
• B. Everyone concerned have been contacted
• C. Everyone concerned has been contacted
• D. Everyone concerned is being contacted

Answer 1

Answer:

C. Everyone concerned has been contacted

• The subject ("Everyone concerned") becomes the subject of the passive sentence.
• The auxiliary verb "has" matches the tense and agrees with the singular subject "Everyone concerned."
• The verb phrase "has been contacted" is used to form the passive voice.
• have been contacted - This is incorrect because "everyone" is singular, so it should be "has" instead of "have."
• is being contacted - This is incorrect because it is in the present continuous tense, whereas the original sentence is in the present perfect tense.