Final answer:
The correct Spanish equivalent is 'Los estudiantes van a la escuela.'
Step-by-step explanation:
Los estudiantes van a la escuela. This is the correct Spanish equivalent of the phrase 'The students were going to school.' In Spanish, the verb 'ir' (to go) is conjugated as 'van' when referring to a group of students (third person plural). The phrase 'a la escuela' means 'to school'.
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