I know that in Spanish, definite articles are used with the days of the week more than in English. So maybe I tend to overuse them.
I wrote the following sentence:
En España, el primer día de la semana es el lunes y el séptimo es el domingo.
But my workbook said that the correct answer was así:
En España, el primer día de la semana es el lunes y el séptimo es el domingo.
CAN articles be used there and not sound awkward? Is there some efficient kind of rule to remember when articles are used with the days of the week and when they're not?
Gracias!!