Question

1. tú y yo __________________ amigos desde el primer grado.

c. son
d. somos
c. están
d. estamos

1. yo

Explanation:

In Spanish, "tú y yo" (you and I) is a first - person plural subject. The verb "ser" (to be) in the first - person plural present tense is "somos" when referring to a permanent or general state like being friends since first grade. "Son" is the third - person plural form of "ser", and "están" and "estamos" are forms of the verb "estar" which is used for temporary states or locations.

Answer:

d. somos