LECCION 6

      * LINK PARA  LA LECCION 6
      * THERE IS AND THERE ARE IN POSITIVE 1
      * THERE IS AND THERE ARE IN POSITIVE 2
      * THERE IS AND THERE ARE IN NEGATIVE 1
      * THERE IS AND THERE ARE IN NEGATIVE 2
      * THERE IS AND THERE ARE QUESTION FORM 1
      * THERE IS AND THERE ARE QUESTION FORM 2
      * THERE IS AND THERE ARE IN THE 3 FORMS
      * EJERCICIO 1 (ANGELS REALY EXIST?)
      * EJERCICIO 2
      * EJERCICIO 3