Whether you believe it or not, it was________ caused the serious accident.
—We are going to be late, Mary. Do you have the time?—________.
Everybody knows about it now! But no one knows ________ once prevented the rumor from spreading.
Programs,________to join the old and the young together, are growing in popularity all over the world.
________, the pay isn't attractive enough, though the job itself is quite interesting.
Hardly ________ twelve when they realized that it was too late to catch the last train.