"Did you all visit that museum?"
Translation:¿Ustedes visitaron ese museo?
I wrote "¿Visitaron ustedes ese museo?" and was told that I should have used the Vosotros form "visitasteis."
It rejected "visitaron ustedes ese museo" with the explanation "You used the ellos/ellas/ustedes form "visitaron" instead of the vosotros/vosotras form "visitasteis". ¿ visitasteis ese museo?".
Duolingo should accept the vosotros form but, since it does not teach it, it must not require it. Reported 2 July 2018.
This answer should be accepted. There was nothing in the English version to indicate that the "vosotros" form should be used. It's especially ridiculous to expect that answer as the vosotros form has never been introduced. Does anybody from Duolingo read these comments? There is a lot of inconsistency in "grading" answers.
I put: ¿Visitaron ustedes ese museo? It was rejected and corrected to ¿Ustedes visitaron ese museo?
I'm not a native but have been speaking Spanish for many years. I think inversion is appropriate here. It looks from the other comments like this question setup in DL has a lot of problems and needs to be looked at.