Venga a nuestra casa is used for someone who should respect or who is elderly so this would be the right choice.
Ven a nuestra casa would be used to refer to maybe your close friends or people you can be casual with :)
Answer: Your Answer would be Juan abre los ojos rápidamente.
Explanation: I have been doing Spanish for 2 years now and I am currently taking a Spanish class. I hope I am not to late
Answer:
El año pasado, nunca.
Explanation:
The rest do not make sense, but the "El año pasado nunca" can be used to say you did not do something last year.
Answer:
Pasar tiempo con sus amigos en los fines de semana.
Explanation:
Esta en el articulo.