Answer:
Su propósito es iniciar, prolongar, interrumpir o finalizar una conversación o bien sencillamente comprobar si existe algún tipo de contacto.
Answer:
It is an invitation to read and seeks to prepare readers
Are those words that the author destined to someone in particular: They are calls to the reader to take into account certain aspects before beginning the reading
Explanation:
You put this under Spanish so I assumed you wanted it translated
La semana pasada, el presidente visitó mi escuela
Hay un libro y VARIOS papeles en el escritorio
