--Mum, may I play computer games for a while?--As soon as all your homework ______, you can.
【2012广东】Jenny in the kitchen when you called her at 5 o'clock this afternoon.
【2012北京】I ____ Mr. Smith since he moved to Shanghai.
【2012北京】—May I speak to the headmaster?—He ____ a meeting now. Can I take a message?
【2012北京】—Where were you last Saturday?—I ____ in the Capital Museum.
【2012.安徽省】--Let's discuss the plan, shall we?--Not now. I_____ to an interview.