This document discusses demonstrative adjectives in English and provides examples of using "this/these" and "that/those" for singular and plural nouns. It gives the examples "this is a ball/these are balls" and "this is a kite/these are kites." It then has students complete sentences using demonstrative adjectives, like "This is a computer game" and "These are cars." Finally, it explains the difference between "this/these" for objects near the speaker and "that/those" for objects further away.