Types of Sentences

     * A declarative sentence makes a statement. It the end with a full stop. (.)

      - I am so hungry.            
      - My pet is a dog.

    * A interrogative sentence asks a question. It ends with a question mark. (?)

      - How are you today?
      - What time is it?

   * An exclamatory sentence shows a strong felling or emotion. It ends with an exclamatory mark. (!)

      - Watch out!
      - Look at that beautiful parrot!
     

   * An imperative sentence gives a command or a request. It ends with a full stop. (.)

      - Take the dog to the vet.

online exercise type of sentence

http://grammar.ccc.commnet.edu/grammar/cgi-shl/quiz.pl/sentence_types_quiz.htm