I'm studdingstudying English with Murphy's Grammar in use and I'm puzzled with something. I have this exercise where I have to put in the right preposition. But it's not the problem.
All objects on these pictures are describingbeing described with the "the" article except the last one - a farm"a farm" (it's not my opinion, it's in the answers). Why so? Is it because we can't see the farm itself, but only piles of straw? But we also can't see the whole sales department, we see only one desk. Please, help me out.