Respuesta :
1.¿El reloj está debajo de mi escritorio?
2.Hay una puerta.
3.Es una mesa
4.Donde estan los carteles
esta means is, estan means is it so.
Hope I helped
1. El relo esta abajo de mi ( i forgot how to say desk...my bad)
2. Ahi ay una puerta
3. Es una mesa
4. Donde estan los banderes
5. esta means your talking about a thing and estan means your talking about an action. they are both similar because your talking about something in general I guess.