Spanish language Q&A Forum

In the quiz, the sentence was "When I go to Spain, I always go to the beach".  - "___________ voy a Espana, siempre voy a la playa"

The answer is "Cuando" without an accent.  In the lesson, it says that cuando without an accent is a relative adverb which introduces a depennt clause.  In the above example, what is the dependent clause that "cuando" is introducing?  I am not a gramarian, but it seems like both of the above clauses are independent.  That may be incorrect, but could you please explain?

I did not catch the first spoken sentence. I did not at all hear "tenemos mucha hambre y sed".  Was something else said instead?

Suggestion, along with having vocabulary words presented before each exercise also have the lessons that one should have done/review prior to doing the exercise.  For example, somehow I did missed the lesson on conjugating in the near future lesson, and I was lost with those sentences.  Thanks.

Hola! 

I'm having a hard time wrapping my mind around the purpose of doubling down on the indirect object usage in some of these examples:

"Ella le envió un regalo a Miguel. 

She sent a present to Miguel."

In this example, why do you need the le if you already have Miguel. It reads to me literally as "she him sent a present to Miguel" and I suppose it feels like excessive and unnecessary additional language in an already clear sentence. Is it for emphasis? Por favor ayúdame a entender.

Why is it "las puertas y ventanas" and not "las puertas y las ventanas"?  Usually Spanish seems to have two definite articles where English has only one.