"Where are the students?"
Translation:Ubi discipuli sunt?
Discipuli is the nominative form of the plural noun and discipulos is the accusative form of the plural noun. Generally the nominative form, discipuli, is used when the noun is the subject and the accusative form, discipulos, is used when the noun is the direct object. For example, if you say "The students sleep" then it translates to "Discipuli dormiunt" with "students/Discipuli" being the subject. But if you say "I have students" the subject is "I/Ego" and it would translate "(Ego) discipulos habeo" with "students/discipulos" being the direct object.
So in this question "students" is the subject (light bulb!) - "The students are where?" I didn't realize this when i answered the question ("Where are the students?").
Was caught up wondering if "to be" is intransitive in Latin as it is in English ("It is I"). I guessed that it is and got the right answer for a totally irrelevant reason. (i'll take it)