En la clase de educación física los estudiantes deportes.

The sentence translates to: In the physical education class, the students sports.

In this case, I think the correct answer would be "practican" which means "practice" (but maybe there are other answers too, since there isn't an specific word, these being: 'do - hacen', 'learn - aprenden').

I still think that it may be "practican".

Good luck!