1.These are biue bags.2.Those are white dogs.3.They are yellow caps.4.These girls are nice.分别做出

1.Are these blue bags?Yes,they are.No,they aren't.2.Are those white dogs?Yes,they are.No,they aren't.3.Are they yellow caps?Yes,they are.No,they aren't.4.Are these girls nice?Yes,they are.No,they aren...