John, look at the time._____ you play the piano at such a late hour?

--- May I smoke here?
--- If you       , choose a seat in the smoking section.

–Will you read me a story, Mummy?
--OK. You ______have one if you go to bed as soon as possible.

Tommy, you____ be hooked on the Internet all day. You may fall behind others in study.

Excuse me, where      I put my clothes? The wardrobe is full.

—Some countries are taking action to occupy the islands of the South China Sea.
—Yes, but I think they ____be punished sooner or later.

—I didn’t tell him the news.
—Oh, you ought _______.

It is written clearly in the requirements that all passengers  _______  check onto board thirty minutes before the plane takes off.

—Are you going to help him?
—Why  ___ I help him? He' s never done anything for me．

--- Are you in a hurry?
--- No, in fact, I’ve got plenty of time. I _______ wait.