DECLARATIVE - A declarative sentence is a statement that ends with a
      period.
	EXAMPLE: The bird landed on the roof.

  INTERROGATIVE - An interrogative sentence is a question and so it
      ends with a question mark.
	EXAMPLE: Can we eat our vegetables now?

  IMPERATIVE - An imperative sentence directs someone to do something. 
      It can end with a period or an exclamation mark.
	EXAMPLE: Wipe your feet.

  EXCLAMATORY - An exclamatory sentence expresses a strong feeling and
      it ends with an exclamation mark.
	EXAMPLE: That really stinks!

 1) Brush your teeth before going to bed.

 2) When do you plan to get up?

 3) There are five rats in the basement.

 4) That milk tastes horrible!