Spanish language Q&A Forum

In a previous question, mover was used in a present tense (Ella mueve...). However, in this quiz, mover was used in a reflexive tense (El perro se mueve). How do we know when to use or not use the reflexive tense? 

It seems to me it is not always the case that se comes from a pronominal verb.

I think not when the situtation is accidental or emotional, right? So a non pronominal verb can accompany se while it is being activated buy these 2 states. In other words in, 

Los niños se nos están haciendo mayores sin darnos cuenta.Our children are growing without us realising.
 hacerse not here,  se only comes from emotional involvement. Or is it always the case? I can see where hacerse means becoming.

When to use "hay que" vs "se debe"?

From lesson:

"Hay que recoger cuando ellos terminen.We have to tidy up when they finish."

When referring to objects, would you always use 'el' instead of 'lo'?

Why doesn't "Lo de estilo victoriano me parece más valioso" work?

What is the difference between para la que and para el que.

Can someone please explain when we cannot use either of the two.

Gracias!

Can someone please tell why is it Los padres paseaban con sus hijos por el parque.

instead of Los Padres estaban paseando con sus hijos por el parque.

Por favor ayudarme! :)

This app seems to find the holes in one's knowledge. I live in Spain, I'm not a fluent speaker, but I get by. I can read most Spanish papers, books etc without too many problems.     Listening, not so good, but not terrible. Been here eight years .  Did test, got A1! Did some of their A1 exercises, and got practically full marks.    Not sure I'd pay for this, but it's more demanding than the green owl related tutor!

"Los países en la cumbre presentaron sus propuestas ________ las catástrofes naturales."

In this question, the correct answer is ante.   Could "frente a" be another option here? 

"Los países en la cumbre presentaron sus propuestas frente a las catástrofes naturales."

Also, could you either add a section about frente to this lesson or create a lesson about frente?