The aswer is: ¡Complete la tarea!
The reason is because the student is third person, singular so you have to use a verb tense third person singular.
Answer: ¡Completa la tarea!
Explanation: When Maria gives instructions to a student, she is speaking to an interlocutor, who is a standard, second-person in the singular, so the verb "completar" must be conjugated in this form. ¡Completa la tarea!
[tex]\textit{\textbf{Spymore}}[/tex]
