may I suggest that this sentence is rerecorded - it is very difficult to hear.
"The tents in the room are red" is accepted. I never knew Italians were so broad-minded when it comes to furniture. Respect! :D
Much of the Italian audio is bad, but this phrase is outstandingly bad!
I was gonna put tende but both the slow and fast recordings clearly ended with "n" (tenden) which apparently is not a word, but it's what I heard.
the hint for tende is stretches not curtains :(
but the article in front of it indicates it is a noun, not a verb
I never heard the word 'tents' used for curtains. I put 'blinds' but it was not accepted
So 'la tenda' means both 'the tent' and 'the curtain'?