Диалог между сотрудником и человеком. поставить This or these
Excuse me, sir! Is .......... your bag?
No, It isn't. ..............is my bag.
..............one?
Yes!
And, are ................your CDs?
Yes, they are. And .............. are my glasses
And is .............. your camera?
Camera? No, it isn't

Excuse me, sir! Is THIS your bag?No, It isn't/ THIS is my bag.THIS one?Yes!And, are THESE your CDs?Yes, they are. And THESE are my glassesAnd is THIS your camera?Camera? No, it isn't