Sabes
because conocer is used more when you personally know someone/thing
saber is used when you know facts about someone or something.
se is conjugated in the yo form
sabes is conjugated in the tu form so this one is correct because you are asking someone if they know where the party is.
The word that would best fit the sentence would be the word "favorito" which is favorite in Spanish
Charlie y Sophie van a aprenderan mucho de la cultura de Puerto Rico en Jayuya.
Answer:
How about saying this instead:
Mi hermano tiene diecinueve años y creo que es perezoso y aburrido.
Explanation: