— Tom, are you going swimming with us?— I’d love to, but something important has ______.

______ winner, who might be the luckiest, was a housewife. 

(2013 ·陕西宝鸡二模)—You don't seem to be quite yourself today.What's wrong?—Oh, I'm suffering from a cold.Nothing serious ________.

—I’m fed up with these naughty boys!—Maybe we can find a new direction for their _________ energies. How about a football game?

Many times, the weather forecast has been incorrect and we have missed out what has ________ to be a fine day for outdoor activities.