Ramirez – Je n’ai pas pu utiliser les toilettes pour hommes, il y avait un panneau sur la porte indiquant qu’elles étaient momentanément inutilisables à cause d’un chantier de désamiantage.
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Ramirez —  I couldn't use the mens'room for there was a sign on the door indicating that they were temporarily out of service because of an asbestos removal work.
Translated by Mazamie 1314 20 hours ago

Discussion

Suggestion Beatrice: I couldn't use the mens' toilets because there was a sign on the door to say they were temporarily closed for the removal of asbestos.
(room = singular so you would need singular 'it' (indicating that it was temporarily . . . )

by Merlin57 15 hours ago