Spanish language Q&A Forum

Which is the most used form: "Cómo te llamas?" or "Cual es tú nombre?" I didn't understand quite well when reading the text

(please ignore the lack of the interrogation point at the beginning of the questions, my keyboard doesn't have this "feature")

The last subsection, Difference between todo/-a and cada, explains something entirely different.

I'm curious what the content of the missing chapter should be.

The answer is sin saber los adultos. I’m not sure why the answer is not subjunctive as there are two different subjects, the one who stayed hiding and then the parents

As stated by one example, "Yo conocí a Susana hace 6 meses."

However, as stated by another, "Hablé con Clara hace 2 horas." 

Why didn't the second example utilize "a"

Is it because "con" had already been used?

While it has been over a year since he submitted that question, I too share his frustration with this lesson. Can someone at Kwiziq give a little more explanation? It would super nice if someone could answer Jeffrey since that is exactly what I have been wondering.