Not until the stadium of Bird’s nest was completed in the end ____back to their normal position.

when the newspaper boy got to a blue door, _________, which frightened him away as fast as possible.

 —Is your mother going to the supermarket ?—No, ____.

He failed in the exams and only then _____ how much time he had wasted. 

—I thought you wouldn’t mind.—Well, as a matter of fact I _____; but you should have asked me first.