It is used as a direct object, indirect object, or an object of a preposition. A demonstrative pronoun points out a particular person, place, or thing. The demonstrative pronouns are this, that, these, and those. An indefinite pronoun refers to anyone or any number of persons or things. When it is used as a subject, it must agree in number with its verb.
Interrogative pronouns introduce interrogative sentences.
They are who, whom, whose, what, and which. In this chapter the student will review the pronouns covered in Chapters 14-17 by choosing the correct form needed in a sentence. In this chapter the student will distinguish between adjectives and adverbs by choosing the correct one in sentences. An adjective is a word that modifies or describes a noun or a pronoun. An adverb modifies or describes an action verb, another adverb, or an adjective.