He kept thinking of the question whether it was ____ for his father to change the habit of a life time in such a short time.
During the last three decades, the number of people participating in physical fitness programs __________ sharply.
When I first met Bryan I didn't like him, but I __________ my mind.
—Oh no! We're too late. The train __________.—That's OK. We'll catch the next train to London.
—Have you heard about the recent election?—Sure, it __________ the only thing on the news for the last three days.
—When shall we restart our business?—Not until we __________ our plan.