There are 22 Spanish speaking countries
Where do you think this myth comes from?
This myth comes from Mexico because most of people think they cross the border illegally.
Who benefits from this myth?
USA
Why is this myth untrue?
Because there are a lot of people from around the world coming to USA legally with VISA and papers.
Puede ser que Ellos ____ la cultura del país y _____ la importancia de las tradiciones
Answer : Puede ser que ellos conocieran la cultura del país y supiesen la importancia de las tradiciones.
Tercera persona plural del pretérito imperfecto de subjuntivo, verbos conocer y saber. Ellos conocieran , ellos supiesen.
Hope this helps!