So the suggestions when tapping the words give me the following phrase, Le fille était aller bien à taciturne. How are we supposed to know what Duo wants in this situation or what the actual phrase is?
La fille était devenue silencieuse. I wonder if this phrase makes sense to the French ear.
It does and you can say the same thing with "elle s'était tue", because "se taire" is to stop speaking.