The ones with la are feminine and the ones with el are masculine. When the noun ends in an “a” it’s obviously feminine and when a noun ends in “el” it’s obviously masculine. It’s hard to tell whether it’s masculine or feminine when theres los and las and when it doesn’t end in an “a” or “e”
5. Argentina
6. Guatemala
( these are the only ones I could figure out .)
Estoy hablando con mi mama
Los martes a las cinco PM
La muscica que me mostrastes anteriormente
En la biblioteca
La television
La abuela es MAYOR DE EDAD.
If you have options to fill in the blank, plz let me know.