1) son
2) es
3) Nosotros somos de Argentina
Answer:
Yo he frito el pollo
Explanation:
Fried is past participle, so you need verb *he* and the adjective *frito*
Mandaríamos cartas como en los viejos tiempos
They are in the school
I go to school every day at 8-4
You play good in volleyball