Spanish language Q&A Forum

I understand the line ' .. para realizar el sueno de crear una marca de aceite oliva referente en calidad y sabor' to mean '  in order to realize the dream of making a brand of olive oil that is a benchmark in quality and flavour. 

Why is there no other connection words between oliva and referente? 

Thanks!

Why use estaba when saying “I was very calm and happy”? It didn’t seem like an ongoing action in the past but one defined by “after my swim”. Why not estuve?

These tickets for the tennis match are cheap. : ___ entradas para el partido de tenis son baratas.

The key word here to me is "These".  The answer of "Estas entradas" is marked as wrong and should be "Las" -- which would be "The tickets for ..."   

This looks like a mistake to me.

Ella se mudó allí hace dos meses.   Is this correct?  The lesson says we can't use the preterite with hace + time.

Why did you put an accent on Cuanto más?

This may not be related to this lesson but how do you know when to add 'de' in between the adjective and the noun? For example:

No leiste ningún libro de italiano. (Here there is a 'de' in between 'libro'and 'italiano'.)

La florista no vende ninguna flor amarilla. (Here 'flor'and 'amarilla' are together)

How do you know when to add a 'de'?

Thanks.