—I missed the chance to take part in the concert of Jay Chou — . A. Never mind ! B. What a pity! C. What a surprised!
Your father’s parents are your ______.
Please ________ John at 678-5678.
— What color is the ruler? — ________.
This is ______ eraser and ______ eraser is Tom’s.
I ______ a set of keys. Are they your keys, David?