Question

Change the following sentence into passive voice:
The grandmother feeds the sparrows daily.

• A. The sparrows are fed by the grandmother daily.
• B. The sparrows are fed up by the grandmother daily.
• C. The sparrows are feed by the grandmother daily.
• D. None of the above

Answer 1

The correct option is A The sparrows are fed by the grandmother daily.

In active voice, the subject does or performs an action.
In passive voice, the subject receives the action. (Or, the subject receives the action that is performed BY the object.)
The structure changes while transforming from active to passive, but the tense remains the same.
While changing the given sentence to passive, 'The sparrows' becomes the subject and the 'grandmother' becomes the object. The verb form changes to 'are fed'. (are + past participle)
Hence, the answer is: The sparrows are fed by the grandmother daily.
This is the same as option A, hence it is correct.
Option B: The verb form 'fed up' has a different meaning, 'to be annoyed with someone'. This changes the meaning of the sentence.
Option C: 'Are feed' is grammatically incorrect. 'Feed' is the base form of the verb. But, the simple present tense (passive voice) uses the form is/are + past participle.
Hence options B and C are incorrect.
Option D is incorrect because the answer lies in A.