Respuesta :

this is what we were doing.
that is their place.
that is where they used to sat.
this is the pencil they used.
this is the bus they took to go to school.
that is their favourite restaurant.
they were doing homework in this desk.
they are going to go to that hotel you told them about.
that is the school where they studied french.
this is where they eat lunch.
that is the teacher they liked.
this is the camera they stole.
that is the house where they lived for 3 years.
that is the car they used.
this is the backpack they all chose.