This a pen.that is a pen,什么

This a pen.that is a pen,什么 that is a pen Is __ your pen ?That is his pen. A.that B.this C.her D.his. this is a my pen Is this a your pen? This is a nice pen. It is clear that this is a pen? A:that's your pen.___ is my pen B:Do you __ this is interest This pen is ________and that is ________ pen.A.mine,hers B.m this is a red pen.and that is a green pen.（改为同义句） this is a that is a pen /that is the pen有什么区别? what is that in English?是It is a pen还是This si a pen还是That is