Answer:
The right answer is, C, Z and S
Explanation:
Because in the Spanish language these three letters in many cases have the same s sound.
It’s C ....................
1. Ordenada
2 graciosos
3 estudiosas
4 reservados
5 bajo
6 atrevidos
7 sociable
#7 is B
#8 is D
#8 is "estaba"
(I speak Spanish)