To know I would need to know what the verb in the parentheses is.
“ El muchacho” would be the best choice because it is asking a question and “mañana, dia, and hola” all have a past tense sort if deal to them.
Answer:
a La abuela : sujeto vino a la casa : predicado
b Las grandes aves: sujeto vendrán esta primavera : predicado
c Elsa : sujeto viene con dos carritos : predicado
d El perrito : sujeto viene corriendo : predicado
Explanation:
.