Answers
Nov 05, 2013 - 10:44 PM
The last floor is an innate quality. It will always be the last floor. That will not change. For that reason, it is acceptable to also use ser.
Nov 22, 2013 - 12:22 PM
Thank you. That makes sense. But it sure makes for more hesitation when trying to be fluent if you have to keep asking yourself whether something is capable of changing or is relative. I guess practice is what does it.