当你把你爸爸介绍给Miss Wu时,你应说:______ A. This is Miss Wu. B. Miss Wu, this is my dad. C. He is my dad.
I don’t want the white bird. I want_______.
My grandmother is old. Look! She is walking_______.
It’s a quarter_______ eight. It’s time for breakfast.
I_______sing. My sister_______,but she can dance.
Wait_______the next bus, please.