Abrías;durmió
“Mientras” is a present word so it’s happening now, the rest of the sentence should be present too, so abrías and durmió
In a health book or on the internet.
True.
Museo is masculine and you can't change it to female it is one of the few words you can't change.
Tus abuelas(feminine)
tus abuelos(masculine)
