Select the correct passive form of the given sentence.
After driving Professor Mohan to the museum, she dropped him at the airport.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → After being driven to the museum, Professor Mohan was dropped at the airport.
Passive of a sentence with an -ing phrase:
| Change | Active | Passive | Why |
|---|---|---|---|
| Object becomes subject | Professor Mohan ... him | Professor Mohan | Professor Mohan is the one driven and dropped. He comes to the front. |
| -ing phrase made passive | After driving | After being driven | The passive of an -ing form is being + past participle (V3). |
| Tense kept | dropped | was dropped | “Dropped” is in the simple past, so the passive stays in the simple past: was + V3. |
| Agent (by ...) | she | (by her) | The doer is not needed, so it is left out. |
| Full sentence | After driving Professor Mohan to the museum, she dropped him at the airport. | After being driven to the museum, Professor Mohan was dropped at the airport. |
The perfect -ing form works the same way: having + V3 becomes having been + V3. Example: The doctor checked the boy and sent him home. → After being checked, the boy was sent home.
Why the Other Options are Incorrect?
Option 2: After being driven to the museum, Professor Mohan had been dropped at the airport. — Incorrect. "Had been dropped" is the past perfect. The active "dropped" is the simple past.
Option 3: After she had driven Professor Mohan to the museum, she had dropped him at the airport. — Incorrect. This is still active. "She" is still the subject, and only the tense is changed.
Option 4: After driving to the museum, Professor Mohan was dropped at the airport. — Incorrect. "After driving" is active. It now says Professor Mohan drove to the museum himself, so the meaning changes.