—Would you mind opening the window,sir?—________.It’s really hot. A.Yes,please B.Not at all.Do as you like C.No,please don’t do that
— in the backpack? -No, they aren’t.
—Is this your ruler? —Yes, it’s ________
-______? -No, it’s on the sofa.
— Is this a pen? — .
—? —It’s my ID card.