If I ___ a bird, I would have flown.Ahad beenBwasCamDwould beAnswer: A. had been Read Explanation: This sentence expresses an unreal past condition (something that did not happen in the past).Rule (Third Conditional):👉 If + past perfect (had been) → would have + past participle (flown)It is used to talk about imaginary or regretful past situations.The speaker was not a bird in the past. Read more in App