<h2>
Answer:</h2>
C. nos
<h2>
Explanation:</h2>
An indirect object pronoun is used to tell us<em> to whom</em> or <em>for whom</em> something is done. In this case, I went to school to our first class of the year, so the profesor talked about the rules of the University. Since the action is being performed for us, that is, he talked to a group of students, then we choose the indirect object pronoun that matches the first person plural, which is nos. Therefore:
<em>Ayer fui a nuestra primera clase del año y el profesor </em><em>nos</em><em> habló de las reglas de la universidad</em>
Carlos y Sofia le escriben una carta a su familia.
That is the answer if the verb is "escribir."
Hope I helped!
:)
Todos los alumnos usan uniformes
Un tercio de los alumnos asisten a escuelas privadas
Las clases comienzan en diciembre y terminan en marzo
Marisa -e
Mi sobrino -e
Yo -o
Nosotras -emos
Usted -e
Mi hermano y yo -emos
Tú y yo -emos
