Which of the following options is the most suitable conversion of the following sentence into Passive Voice?
Couldn't the mechanic identify the problem?
Show answer & explanation
Correct answer: B
Explanation
To convert an active voice sentence with a modal verb (like 'couldn't') into the passive voice, you must maintain the original tense and mood. The structure for a question with a modal in the passive voice is: Modal + Object + be + Past Participle + by + Subject?
Option B correctly uses the original modal 'couldn't', followed by the object ('the problem'), 'be', the past participle ('identified'), and 'by the mechanic'.