Drop the "a" from the sentence
Answer: Quien
Explanation: because you can say quienes and that is plural
Charge
for example charge my phone
Answer:
Hola amigo, mi llamo es Arianna, Tengo siete personas en mi familia. use Duolingo it helps me!
Explanation:
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.