Understanding Types of Sentences: Declarative, Interrogative, Imperative, and Exclamatory

Identify the following sentence as declarative, interrogative, imperative, or exclamatory.

Is this your pen?

Interrogative

declarative

exclamatory

imperative

Is this your pen?

The sentence 'Is this your pen?' is an interrogative sentence because it is phrased as a question, seeking information. Interrogative sentences end with a question mark, unlike declarative, imperative, and exclamatory sentences, which end with a period or exclamation point respectively.