Spanish language Q&A Forum

There's a previous B2 lesson on Kwiziq that teaches that "que" is an acceptable way to express "because". So why is "con lo que" a better answer to the question: "Me sorprende que él haya cedido ________ ha defendido su postura siempre" than simply "que"?

So, I am working my way through Kwiziq. My question is that I am also thinking of having an online Spanish class, possibly twice a week...how do I go about finding someone? I will say that I would much prefer a group class of around three of four people - do they exist. Is anyone interested in getting together a small group of people?

is it not more common, due to the context to say "voy a preparar los documentos" vs" Mis documentos" in Castilian Spanish?

"con todas las velas?" Right now it says "todas la velas"

De quién was an option for this question: 

Mi perro, ________ me acuerdo a menudo, ha muerto recientemente.

However when I selected it I was marked wrong.

However according to this page

Using preposition a and de + el que, la que, los que, las que = to/of/from/about which/who (relative pronouns)

Should I have been marked right because quién doesn't necessarily need to pair with a lo/la?

de punta en blanco - wordreference is giving me a different definition. could this be reviewed? thank you!