In my opinion, what he told us just now about the affair simply doesn’t make any ____.

After long and hard work, the police at last discovered the         of the baby found by the side of a road.

—Americans spend more on health care than most other people .— You’re right . But a new study shows that life      in the United States is falling .

If you don't know that _________ is the mother of success, your are sure to be ________ in life.

The doctor finally gave up the ____ of medicine for full - time writing．