Why did you choose to study physics?
Had somebody told you that you were going to profit from it?
Did somebody tell you that you were going to profit from it?
Had or did? I guess had is correct but for some reason I feel as though native speakers don't usually use the past perfect with questions. I can honestly say that I have never heard them do so, at least.
Both questions are OK, but the second one would be more common, as you suspect.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Both questions are OK, but the second one would be more common, as you suspect.