Question

Choose the most appropriate option from those given to transform the following sentence from the Active Voice to the Passive Voice: One should keep one's promises.

• A. Promises should keep by one.
• B. Promises should kept by one.
• C. Promises should be kept.
• D. Promises by one should be kept by one.

Answer 1

The Correct Option is C

Concept:

• To convert an active sentence with a modal verb like 'should' into passive voice, the structure becomes: object + should + be + past participle.
• When the subject of the active sentence is a general word like 'one' and does not add real information, it is normally dropped in the passive form.

Step 1: Break down the active sentence
"One should keep one's promises" has subject 'One', modal 'should', verb 'keep', and object 'one's promises'.

Step 2: Convert the object into the subject of the passive sentence
'One's promises' becomes 'Promises' as the new subject.

Step 3: Apply the passive structure with the modal
'Should' stays as it is, followed by 'be' and the past participle of keep, which is 'kept', giving 'Promises should be kept'.

Step 4: Check the other options for grammar errors
'should keep by one' and 'should kept by one' are grammatically broken forms of passive, and 'by one should be kept by one' repeats the agent incorrectly.

Final Answer: Promises should be kept.