There are four demonstrative adjectives in the English language: this, that, these, those
Demonstrative adjectives are used to point out a specific noun. Always place the adjective in front of the noun.
this – use with a singular noun that is near
that – use with a singular noun that is farther away
these – use with a plural noun that is near
those – use with a plural noun that is farther away
I want this apple.
That apple is too green.
Let’s use these tomatoes for the salad.
I didn’t read those books.
Demonstrative adjectives modify specific nouns.
It’s your turn. Find the demonstrative adjective in this sentence: Have you seen these new magazines? That wasn’t too hard, was it?