We hide behind the cupboard" not accepted. "Cupboard" is British English for the Danish "Skabet". http://da.bab.la/ordbog/engelsk-dansk/cupboard
Sorry, I must have missed this one when I went through all the sentences with skab, fixed it now
I see that others gave the same, correct translation as me five years ago, namely, "We hide behind the cupboard". I can see that Duolingo doesn't give a damn since it's still rejecting it.
How would you say "in the back of the closet"?
"Bagest i skabet".