Answer: Yo soy optimista
I am optimistic
Explanation: The subject in this sentence is "Yo", that is a first-person in the singular, so the verb must be conjugated in this form. Yo soy.

Answer:
soppi es una muchacha
soppi camina a la escuela con su mama
soppi ve una persona
es un criminal que se llama flake
soppi corre y flake corre
Explanation:
Answer:
ningún,
Explanation:
ningún is best suited to the context of the sentence