Spanish language Q&A Forum

I understand why:

"¡Ya estás pidiendo disculpas a tu hermano!"

is correct, but I don't understand why:

"Pidas disculpas a tu hermano is wrong."

thanks,

R

A found question #1, but can’t find question #2. Same thing happened to me yesterday—my first day on your app.

I wrote "Que si hermosos palacios, que si parques espectaculares.." but I was corrected to "que si hermosa°s palacios que si parques espectaculares...".  I thought I heard hermosOs not hermosAs, and shouldn't the O be correct anyway? 

I have a screenshot of this if it is helpful.

thank you for this article. I learned many new things.

 To me it seemed that the the word "da" didn't quite come through even when I replayed it.

de las ciudades más bonitas de España

When would I use “en”?

Could someone please tell me why I was told it's wrong here in this quiz?

Kqiziq (B1): El año pasado visité todas las ciudades de Cataluña ___________ Tarragona (Last year I visited all the cities in Catalonia except for Tarragona). 

The options given: menos/sino/pero/aunque/incluso. 

I chose «sino», and I was marked wrong. The correct answer was «menos». I, of course, accept «menos», but why is «sino» wrong here??