Where are Henry's headphones?
Henry's headphones are in the flat.
Where is Kirsty's watch?
Kirtsy's watch is in the street
Where are Kirsty's glasses?
Kirsty's glasses are in the shop
Where is Kirsty's guitar?
Kirsty's guitar is in the flat.
Their camera is in the restaurant. - ?
Where is their camera?
Their computer is in the park. - ?
Where is their computer?