—Excuse me, could you help me take this chair to my office?—I’m sorry, ______ I can’t help you right now. I’m too busy.
You don’t look ______ today; you’d better go to see the doctor.
I hope ______ on time.
It ____about 15 minutes ____the theatre.
Do you come here ____ your car?
—_____must I take this medicine every day? —Three times a day.