Final answer:
The subject of this question is Spanish. The student is asked to fill in the blank with the correct form of the verb 'llegar' in a sentence. They should choose the form that matches the past tense and third person singular subject.
Step-by-step explanation:
The subject of this question is Spanish. The question is asking the student to fill in the blank with the correct form of the verb 'llegar' (to arrive) in a sentence provided. The sentence states 'Ayer mi hermana (llegar) tarde a la escuela,' which translates to 'Yesterday, my sister arrived late to school.' The student needs to select the correct form of the verb 'llegar' that matches the past tense and third person singular subject 'mi hermana' (my sister).
Learn more about Spanish verb conjugation