An Indirect Object is the person, animal or thing that receives the action of a verb, that is, the recipient of the direct object. So, an Indirect Object Pronoun is a person that receives the action of a verb indirectly. Its purpose is to tell you to whom or for whom something is done. We can see the different forms of indirect objects in Spanish in the Table below.
Therefore, the answers are:
1. Right answer: les
La maestra les da un examen (The teacher give you a test)
As indicated in the Table bellow, les is the indirect object pronoun for the third person plural and also for the formal you (ustedes). So, the action to give an exam is being performed to/for you all (ustedes).
2. Right answer: le
Mi mamá le escribe una carta (My mom writes him a letter)
As indicated in the Table bellow, le is the indirect object pronoun for the third person singular. So, the action to write a letter is being performed to/for my father
3. Right answer: te
Tommy te da el pollo (Tommy gives you a chicken)
As indicated in the Table bellow, te is the indirect object pronoun for the second-person singular. So, the action to give the chicken is being performed to/for you.
4. Right answer: le
Nosotros le hablamos por teléfono. (We talk to her by phone)
Here le is being used to indicate that the action to talk by phone is being performed to/for the teacher.
