1. yo habré aprendido la contraseña para comprar boletos en línea
Explanation:
The perfect indicative future is used to talk about actions that have not yet been completed, but will have done so at a certain point in the future that is expressed in the sentence:
Example: Dentro de dos horas, habré acabado mi tarea.
The perfect indicative future is also used to talk about an assumption about a past or future action:
