From the given alternatives, choose the one which best expresses the sentence in Active/Passive voice.
The doctor advised the patient not to eat chocolates.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → The patient was advised by the doctor not to eat chocolates.
Passive of the simple past tense:
| Change | Active | Passive | Why |
|---|---|---|---|
| Object becomes subject | the patient | The patient | The patient receives the action, so the patient becomes the subject. |
| Tense kept | advised | was advised | “Advised” is in the simple past, so the passive stays in the simple past. The passive form is was/were + past participle (V3). |
| Agent (by ...) | The doctor | by the doctor | The doer moves after the verb with “by”. The advice “not to eat chocolates” stays at the end. |
| Full sentence | The doctor advised the patient not to eat chocolates. | The patient was advised by the doctor not to eat chocolates. |
Other passive forms: is/am/are + V3, has/have been + V3, will be + V3. Example: The coach told the players to rest. → The players were told by the coach to rest.
Why the Other Options are Incorrect?
Option 2: The doctor was advised by the patient not to eat chocolates. — Incorrect. The roles are swapped. Now the patient gives the advice and the doctor receives it.
Option 3: The patient is advised by the doctor not to eat chocolates. — Incorrect. The tense changes from past to present. The active sentence has “advised”.
Option 4: The patient has been advised not to eat chocolates by the doctor. — Incorrect. The tense changes from simple past to present perfect. “Advised” needs “was advised”.