dlaczego jest zla odpowiedz "I am hearing this man"? Dziekuje.
Why its not męzczyzna?
"to hear" needs Accusative, which is "mężczyznę".
why is it this and not that?
Both options should be accepted.
Would "guy" be an acceptable translation of "mężczyzna"?
No, that's too colloquial, the basic translation is "facet". In some sentences we could potentially accept it for "chłopak", if the 'guy' in question is relatively young.