the answer is cosas because the sentence would be: I need to know what types of things i need to bring to travel to the Dominican Republic.
<span>What is the most common leisure activity for all Guatemalans?
</span>
visitings the most common leisure activity for all Guatemalan
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.