1 - en el mercado listen to what a group of tourists shopping at an open-air market say and select the demonstrative adjectives you hear.

A demonstrative adjective is one that indicates a relation of place, expressing the proximity of the person with whom or of whom one speaks. These adjectives always precede a noun.

"Here", "there".

"this that"

"These", "those".

Example:

Those fruits are good.

This rice is excellent.