--- The two old friends were ______ busy ______ with each other ______ the time.--- Yes. They hadn’t met for long.
----_____ is this dress? ---- It’s mine.
. ---- Is the letter yours? ---- No, it’s not mine. It’s_____.
----What color is _____ hair? ----I think ______ black.
---What are these ? --- ______ are pens.
. ---Does he have a long ruler? ----No, he doesn’t.. He has a short _____.