---_________﹗Where is my cup?---_________ ,I don’t know.
—What color is the orange? —It’s _______.
—What class is Li Ming in? —She’s in _________.
—Is that _______ orange ? —Yes, it is
—Is that room _____,Jane? —No,theirs_____here.
—Would you like to climb mountains with me this Sunday? —I’d love to. But I _______ play table tennis against Class Three.