What kind of sentence are demonstrative pronouns in?

The demonstrative pronoun are Words that take the place of a noun indicating near or far is place or time.

The demonstrative pronoun are: this, that, these, those.

The demonstrative pronouns are used in all four types of sentences.

EXAMPLES

Declarative: Those are my favorite flowers.

Imperative: Give me that.

Interrogative: Would you like some of these?

Exclamatory: This is the one!