Spanish language Q&A Forum

I just don´t see a definitive way of knowing when to use ser or estar in relationships. Can you help?

Hola!
La segunda pregunta de la prueba dice:
Espero que ____ el avion a tiempo.
I hope that (we will get) the plane on time. 

Elegí "tómaremos" en las opciones. Porque tomar en futuro de subjuntivo es esto - we will take. 
Pero Kwiziq me dijiste que la opcion correcta es "tomemos". Pero esta opcion está en presente de subjuntivo - we take.
Puede explicarme por qué me equivico?
Gracias!

The test question "I always wanted to be a dentist." I answered "he querido" but correct answer was "quise" 

Isn't that a past action that continues into the present? - perfecto?

Anyway this particular topic seems to be all over the place. The goal of these questions shouldn't be trickery IMHO. We're learning to speak a language - not to be a textbook scholar - or at least that's my goal. I asked one of the many Spanish speakers where I work what they thought and they said "it could be either and I'd understand you."

Hola, 

si no me equivoco debería escribir "suspense" en lugar de "supense" tal y como está escrito en el texto.

Gracias,

Alice

I´m wondering how do you know when to use "conocí" or "conocía"?

I recently read "se queda embarazada", and I also found it on 20Minutos. However, apparently, being pregnant is not a permanent change. Is this considered a special case?

Hola

¡Lo que charla tu madre! 

y

¡Cuánto charla tu madre! 

estas frases son intercambiables? significan más o menos lo mismo?

(no importa, veo que esta pregunta ya ha sido hecha)