"The four girls read four books."
Translation:Las cuatro niñas leen cuatro libros.
I wrote" las cuatro chicas leyeron cuatro libros", but it is marked wrong! How do you know whether "read" is present or past tense, here?
Since this lesson is before the past tense lessons, you shouldn't need to use the past tense yet.
I did the same thing. We should report it as a possible correct answer I guess.