DO YOU PAY FOR THE "LIGHT"?
I always find this funny because in English it is impossible to pay for the "light". Spanish people say this because they are translating directly from Spanish: "Cada mes necesito pagar la luz".
If you say that you need to pay for the "light" to someone native they will look at you very strangely". In this case, the word "luz" needs to be translated into "electricity".
So, in England we always talk about the "electricity bill" or "We pay too much for our electicity". So remember NEVER USE "LIGHT" when you are talking about your bills.
Hope that helps!
Soy el director de Daniel Smith + Partners. Tengo más de 10 años de experiencia enseñando inglés a españoles.