Those who failed to get into the art exhibition ________ disappointed as many of the artists who should have appeared did not come. 

  --- What will the weather be like tomorrow? --- It ______ be rainy, cloudy or sunny. Who knows?

— You must be looking forward to your trip to Sydney.— Yes. I         wait any longer.

He ________be at home because the light in his room is on.

—________ I take the book out?—I'm afraid not.