Mickey Mouse was the first cartoon sound and music.A、with B、in C、of
—May I speak to the headmaster?—He ____ a meeting now. Can I take a message?
I work hard this term, but Peter works much ____.
—Mum, must I wash the dishes right now?—No, you ____.
—Where were you last Saturday?—I ____ in the Capital Museum.
Let’s ____ for a walk, shall we?