---The boy cares too much about himself.
---Yes, he's never interested in what ________ is doing.
---What's your impression of the city?
---Oh, what ________ different Tangshan! It isn't ________ I saw last.
---Why didn’t you tell me that you had changed your mind?
---I did ring you several times, but I just couldn’t ________.
--- When shall we make another appointment next time?
--- Make it _______ day you like; it makes no difference to me.
---Mummy, would you buy me an MP3 if I behave well in the following week?
---I ________, I promise.
---About how long would it take to fix my car?
---______. Two or three days, maybe.