Multiple choice Choose the passive voice of—'Who ate my cheese?' By whom is my cheese being eaten? By whom was my cheese eaten? By whom will my cheese be eaten? By whom was my cheese been eaten? Reveal answer Fill a bubble to check yourself B Correct answer Explanation The active sentence 'Who ate my cheese?' is in the simple past tense. The passive form requires 'By whom' + 'was' + object + 'eaten'.