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This is a room. That is a blackboard. Look at it. It's black. These are maps. Those are pencils. Those pencils are not short. They are long. Please take the book, Tom, open it and read Note Five. Close the book and go to the blackboard. Please go to the door and close it.– Is this a pencil?– Yes, it is.– Is that a pencil?– Yes, that's a pencil, too.– Is it short or long?– It's short.– Are those pencils short, too?– No, they aren't.– Is that a book?– Yes, it is.– Is it a good book?– No, it isn't.
