We _______ each other since I came to Changsha, but we often send emails.
haven’t seen
didn’t see
don’t see
---Whose ball is this? ---It’s _____.
This is _______ old football. I like playing _______ football very much.
This desk is new , that one is old .
It`s not cap . is here .
I can`t find Kangkang .Please help me find .