What clothes do you like to buy in the summer?
1.) Los niños so bajos.
2.) Los niños so altos.
3.) Los niños son altos.
4.)Los niños son inteligentes.
All of the sentences have something incorrect some forget the tilde and some have misspelled words. This is how all the sentence should look if they were correct.
I think the answer is 1. And 2.
Necesitamos que haya entendido nuestro compromiso con el trabajo.
Estoy feliz de me hayan elegido para el puesto.
It is programador because the sentence tell that "I study computer science so what i be" so it should be programador