This is a bag.( )bag is yelloy.填什么为什么?

This is a bag.( )bag is yelloy.填什么为什么? THIS BAG IS NOT A This bag is heavy.That bag is a little ） This is a bag对a bag部分提问 this black bag is THIS bag is ( ) This bag is mine this is my bag. "Is this hers bag? _______ this?A Whose is bag B Whose bag is C Who's bag D Who whose is this bag?和 whose bag is this? This is my bag改为同句 This bag is