Demonstrative Adjectives point out which item, object, person or concept is being referred to, and so always come before the nouns they refer to.
The demonstrative adjectives are this, that, (plural these, those), yonder (or yon), former, latter; the one—the other, the former—the latter, used to refer to two things which have been already named in a sentence.
So, any sentence like "These ice creams are.."
This dog is mine
Those children are being noisy