This exercise stands for two different problems. Let's solve each as follows:
<h2>1. FIRST PROBLEM:</h2>
Here we need to fill in the blank with the correct word. The blanks must be filled with a corresponding Direct Object Pronoun. A Direct Object is a noun that receives, in an direct way, the action of a verb and the Direct Object Pronoun replaces the direct object. The Table below shows the different direct object pronouns. So we have five (5) blanks and they will be filled as follows:
<em>Sofía ve a Armando en la calle. Él no </em><em>la</em><em> saluda porque no </em><em>la </em><em>reconoce. No hablan desde hace mucho tiempo. Armando terminó sus estudios en 2001, y Sofía </em><em>los </em><em>terminó en 2002. Tampoco hablan mucho con sus otros compañeros de clase. De hecho, Armando nunca </em><em>los</em><em> llama. Sólo habló por teléfono con Sofía una vez porque ella </em><em>lo </em><em>llamó. Así que ambos siguen su camino </em>
Thus, we have the correct options:
<em>(1) la - </em><em> Here we use </em><em>la </em><em>because </em><em>Sofía </em><em>is the direct object, so we replace her by the direct object pronoun for the third person singular in feminine form, which is </em><em>la.</em>
<em>(2) la - </em><em>We also use </em><em>la </em><em>here</em><em> </em><em>because </em><em>Sofía </em><em>continues to be the direct object.</em>
<em>(3) los - </em><em>Here we use </em><em>los </em><em>because </em><em>estudios </em><em>is the direct object, so we replace it by the direct object pronoun for the third person plural in masculine form, which is </em><em>los.</em>
<em>(4) los - </em><em>Here we use </em><em>los </em><em>because </em><em>compañeros </em><em>is the direct object, so we replace it by </em><em>los.</em>
<em>(5) lo - </em><em>Here we use </em><em>lo </em><em>because </em><em>Armando </em><em>is the direct object, so we replace him by the direct object pronoun for the third person singular in masculine form, which is </em><em>lo.</em>
<h2>2. SECOND PROBLEM:</h2>
In this second problem, we must give an answer to the corresponding question. Therefore, we have the following dialogues:
<h3>First.</h3>
<em>¿Ya abriste la correspondencia? </em>
<em>Sí, ya la abrí.</em>
We choose <em>Sí, ya la abrí, </em><em>because in the question the direct object is </em><em>correspondencia (feminine singular noun), </em><em>so we replace it in the answer by the direct object pronoun for the third person singular in feminine form, which is </em><em>la.</em>
<h3>Second.</h3>
<em>¿Puedes leer este cuento? </em>
<em>Sí, puedo leerlo.</em>
We choose <em>Sí, puedo leerlo,</em> <em>because in the question the direct object is </em><em>cuento (masculine noun), </em><em>so we replace it in the answer by the direct object pronoun for the third person singular in masculine form, which is </em><em>lo. </em><em>It's also valid to attach the direct object pronoun after an infinitive verb (verbs ending in </em><em>ar, er, ir</em><em>)</em>
<h3>Third.</h3>
<em>¿Quieres describir las fotos? </em>
<em>No, no las quiero describir.</em>
We choose <em>No, no las quiero describir, </em><em>because in the question the direct object is </em><em>fotos (feminine plural noun), </em><em>so we replace it in the answer by the direct object pronoun for the third person plural in feminine form, which is </em><em>las.</em>
<h3>Fourth.</h3>
<em>¿Comprendes la lectura? </em>
<em>Sí, la comprendo. </em>
We choose <em>Sí, la comprendo, </em><em>because in the question the direct object is </em><em>lectura (feminine singular noun), </em><em>so we replace it in the answer by the direct object pronoun for the third person singular in feminine form, which is </em><em>la.</em>
<h3>Fifth.</h3>
<em>¿Tienes los pasajes? </em>
<em>No, no los tengo</em>
We choose <em>No, no los tengo, </em><em>because in the question the direct object is </em><em>pasajes (masculine plural noun), </em><em>so we replace it in the answer by the direct object pronoun for the third person plural in masculine form, which is </em><em>los</em>