Spanish language Q&A Forum

Is this common usage in both spoken and written Spanish? Is it more common in Spain than in Latin America? (i.e. Will there be raised eyebrows if I use it in Mexico, like there often are when I use "cover?") Thanks!

For this question:  Es improbable que los niños ________ la puerta. These options show as correct:  hayan roto / rompieran.  I understand hayan roto, as the impersonal beginning signifies "subjunctive", and the event is in the past. However, I learned at a language school in Cuernavaca that present tense statements (es improbable) could only match with haber + participle, and that only past events (eg "era improbable" could match with imperfect subjunctive (rompieran). The teachers made a big deal out of that. However here it shows up as a legitimate option. Can you explain?  Thank you.

When I took the ¿Cómo Estás? A2 Kwiz related to this subject, this question below was marked wrong ("feliz" in red), saying my answer should have been "contenta". Since they both refer to being Happy, can you explain why Contenta is better in this sentence?

MARÍA: Venga chicas, ¡ánimo! Yo estoy muy feliz, ¡tengo un trabajo nuevo!

Rafael y Julio son unos chicos muy deportistas? could you please explain why not Rafael y Julio son unos chicos muy deportistes?  since Rafael y julio are boys ?