— Would you like to have a walk with us? — ___________, but I must finish my homework first. A. Of course not B. I’d love to C. That’s all right
—What class are you in? —I’m ____.
—Who’s that, Kangkang? —____ Mary.
—____ is Mary? —She is five.
—Are they from Canada? —No, they ____.
—____, are you Mr. Wang? —Yes, I am.