I am correcting a year-one student's homework. Verbatim, they wrote "Qui Davus interrogate Iulius to interrogate?," meaning, I believe, to ask "Whom does Davus ask Iulius to ask." I'm having difficulty finding a proper way for the question to be written such that the emphasis is still on the "whom." Regardless, the proper form is beyond the student's current level.
I've considered "Davus interrogat quem Iulius interroget" but I believe that that changes the sentence from an interrogative to a declarative.
"Davus Iulium quem interrogare interrogat?" seems awkward and inappropriate as well.
The best way I can currently think of is to put the first asker into a subordinate relative clause: "Quem interrogat Iulius, quem (ipsum) interrogat Medus?"
I'm also thinking that "interrogare" is the wrong verb for Davus; I've considere using "iubere" or "orare," but the proper syntax still eludes me.
I'd love to hear others' opinions.