Question

los estudiantes type answer... a la clase de español. (ir)

Explanation:

Identify the subject and verb

The subject is "Los estudiantes" (third-person plural, equivalent to "ellos"). The verb to conjugate is "ir" (to go) in the present tense.

Conjugate the irregular verb

The present tense conjugation of the highly irregular verb "ir" for the third-person plural ("ellos/ellas/ustedes") is "van".

Complete the sentence

Substituting the conjugated verb into the blank yields: "Los estudiantes van a la clase de español."

Answer:

Los estudiantes <blank>van</blank> a la clase de español. (ir)