Is this a your pen?

Is this a your pen? Is this your pen? Is this your pen?--( ).---Is this your pen?A.pardon B your p Is （）your pen?No,（）isn't.it's（）pen A.this.this.h is this a pen ___ your pencil case This is a new pen.( ) it in your pencil case This is _____（definite) a letter from your pen-friend Is this your pen Is this his pen?选择疑问句 This not is your pen,your pen is white.改错 A:that's your pen.___ is my pen B:Do you __ this is interest Is __ your pen ?That is his pen. A.that B.this C.her D.his. This is ——pen.Where is——pen?A.his；you B.your