Match the correct ending for each subject.

yo
o
2. tú
áis
3. él, ella, usted
a
4. nosotros/as
as
5. vosotros/as
amos
6. ellos/as, ustedes
an

The correct ending for each subject is:

Explanation:

The conjugation of the verbs in Simple Present in Spanish change depending on the personal pronoun, this is noted in the endings of the conjugated verb, to better understand this, I am going to conjugate a verb in Simple Present so you can see how each of the endings varies:  

Conjugation of the verb "jugar" in Present Simple:

If you see the endings of the conjugations with the verb "jugar," they are the same that the answers in the exercise.

sancho,   considered as acting "natural? " dancing the macarena sobbing