<h2>Answers:
</h2>
The Direct Object, is the part of the sentence that directly receives the action of the verb. It is used to replace a person, animal or thing in the conversation or in the writing in order to avoid repetition; when they have already been seen in a sentence or external context where the statement occurs.
According to the <u>Personal Pronouns</u> the <u>Direct Object Pronouns</u> are:
1st person singular: Yo <u>me</u>
2nd person singular (informal): Tú <u>te</u>
2nd person singular (formal): Usted <u>lo/la
</u>
3rd person singular: El/eso <u>lo</u>, Ella/esa <u>la
</u>
1st person plural: Nosotros <u>nos</u>
2nd person plural: Ustedes(In latinAmerica) <u>los/las</u>/Vosotros(In Spain) <u>os</u>
3rd person plural: Ellos/Ellas <u>los/las</u>
Knowing this, let’s begin with the answers in this paragraph that narrates the brief encounter of two people (Sofía and Armando) who were classmates and do not recognize each other:
<h2>Él no (1) <u>la</u> saluda </h2>
Before this sentence there is another giving the information about the genre of the subject Armando does not say hello, referring to Sofía who is the <u>3rd person in singular</u> she (ella in spanish). As we could see from the list above the corresponding direct object pronoun is <u>la
</u>
<h2>porque no (2) <u>la</u> reconoce </h2>
This is the same case, because it is being talked about Sofía.
<h2>… y Sofía (3) <u>los</u> terminó en 2002. </h2>
Here we are referring to the studies (los estudios) which is a <u>plural masculine noun</u> related to the <u>1st person in plural </u><u>they</u>, therefore the direct object pronoun is <u>los</u>
<h2>De hecho, Armando nunca (4) <u>los</u> llama </h2>
Here we are referring to los compañeros (the classmates), this is also a <u>plural masculine noun</u> related to the <u>1st person in plural </u><u>they</u>, hence the direct object pronoun is <u>los
</u>
<h2>Sólo habló por teléfono con Sofía una vez porque ella (5) <u>lo</u> llamó. </h2>
In this sentence we are referring to Sofía who once called Armando (him). Armando is the <u>3rd person in singular </u><u>he</u> and the corresponding direct object pronoun is <u>lo</u>