Middle childhood would probably be most appropriate to begin supervised strength training.
1) es ,está
2) está, está
3) esta, esta, es
4) estar, son
5) esta
6) esta, esta
7) es
8)son, estan, es
B because the translation is (someone) haves to call to the hospital
The third option...me gusta mucho cantar
if u want me to explain I can :)