Final answer:
The correct response in the 'yo' form would be 'No, no recibí las invitaciones.'
Step-by-step explanation:
The subject of this question is Spanish and the grade level is High School.
To respond to the question "¿Recibiste las invitaciones?" in the 'yo' form, the correct response would be No, no recibí las invitaciones. In Spanish, 'yo' form of a verb is used to refer to the first person singular, which translates to 'I'.
In this case, the verb 'recibí' is conjugated in the 'yo' form of the past tense, indicating that the speaker (yo) did not receive the invitations.
Learn more about Spanish conjugation