Yo _________ feliz.
Fill in the blank.
Yo _________ feliz.
estó
estoy
estar
esto
Yo estoy feliz.
The correct word to fill in the blank is "estoy".
To determine the correct answer, you need to understand verb conjugation in Spanish. In this case, the verb "estar" is being used to express the state of being happy. The subject of the sentence "yo" (meaning "I" in English) indicates that we need to use the first-person singular conjugation of the verb "estar".
Conjugating the verb "estar" in the present tense for the first-person singular is "estoy". "Esto" is a pronoun that means "this". The word "estó" doesn't exist in Spanish.
Therefore, the correct sentence is "Yo estoy feliz."