---Can you dance?--- ________. But it’s difficult. I can’t do it well.A. Yes, I can B. No, I can’t C. I can dance
Our city is one of _________cities in china.
It is necessary for us _______them every day.
I ______ go to bed ______ my father came back.
_____ big fish they are!
You ______ be polite to the old man.