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.
Answer:
visitamos
Explanation:visitamos means you frequently go or visit somewhere
Eres paciente pero divertido
"Eres" already implies the person it's talking to (you, in this case), if we wanted to make it formal, we would've used "Usted es" (You (formal) are)
Answer:
Yo creo que el maximo de carga seria 926kg
