Spanish language Q&A Forum

I selected 'por' as a possible correct word thinking it could mean "The train goes through Madrid"

Greetings everyone!
Why is Después de que has lavado los platos podrás ver un poco la tele

incorrect?

Why is “I feel like an idiot dressed up like a clown” reflexive? Idiot is a noun. I had this question on a quiz. 

I now understand why I am having such trouble with this section, but please clarify. Which form, Mainland or Latin American, are you counting as correct? 

Greetings everyone
I would like to ask why the correct answer is the option:
La persona con quien fui a la fiesta era mi padre

while the answer

La persona con la que fui a la fiesta era mi padre
is marked as nearly correct when both options are acceptable, according to the lesson above.

I still don't understand why "usted no asistió a la fiesta" is wrong. 

¿Te interesa ir a los museos o te interesan las playas?

Hello, why is the imperfect used in this sentence since knocking on the door is a single event?  Why not "fuimos" ?

Eramos nosotros los quien llamamos a la puerta

sorry about the accents

I know a lot of people have brought up the fact that seguir + present participle and continuar  + present participle have the same meaning, so they selected one answer which was marked as incorrect. I realize that the question specified that multiple answers could be correct but the fact that so many people were confused by this makes me think it wasn’t very clear. Maybe you should instead say “Select all of the correct answers” instead. Anyway, I do have an actual question - is there any subtle difference between the two, or any situations in which you would use one over the other? Does it vary by country or region? Just curious. Muchísimas gracias, y que tenga un buen fin de semana!