1) saben
2)conoce
3)conozco
4)sé
A)sabes
B)conoce
C)sabemos
D)sé
E)conocen
Arboles y flores because those are the things that you find at the park. Libraries, cards, and computers are not related to the sentence. Trees and flowers are the complements.
What do you recommend for dinner
A. Voy a ver a mis amigos en el estadio