Did the boy enter Moscow University to study mathematics and physics?
Did the boy enter Moscow University or Saint-Petersburg University to study mathematics and physics?
The boy entered Moscow University to study mathematics and physics, didn't he?
Where did the boy enter to study mathematics and physics?
Did the boy enter Moscow University to study mathematics and physics?
Did the boy enter Moscow University or Saint-Petersburg University to study mathematics and physics?
The boy entered Moscow University to study mathematics and physics, didn't he?
Where did the boy enter to study mathematics and physics?