Can we accept "it is very smoky in this room", and if not, what would the proper translation be?
This sentence is not natural for me .. may i suggest "there's a lot of smoke in this room !"
I agree, however it would be natural enough to use: but "In this room there is a lot of smoke" if you were comparing the room with others which were "smoke free"
Shouldn't 'In this room is a lot of smoke' be accepted. The 'there' isn't really necessary, nor is there a specific polish word serving that purpose.
OK, added it.