Respuestas
Respuesta:
1
A- have, been
B- didn't hear , turned off
2
A-had, forgot
B- have already invited
3
A- have you ever send
B- found, threw
Espero haberte ayudado ^^
1- I've tried to call you three times, where have you been?
Sorry. I didn't hear you because I turned off my phone.
2- Last time we had a party, Don was upset because we forgot to invite him.
3- Don't worry, this time I've already invited everyone un the group.
4- Have you ever sent a message in a bottle?
5- No, but once I found a message un a bottle that someone has thrown into the ocean ten years earlier.
El past simple lo usas cuando quieres explicar algo que sucedió en el pasado. Pero para explicar que algo pasó ANTES que eso,se utiliza el Past Perfect Simple.
Te recomiendo estudiar la tabla de conjugación de verbos irregulares y la próxima tú mismo lo puedas hacer ;D