Peter _______ some money every month so that he can buy a new car.
A．sets aside B．leaves off C．piles up D．gives out
Taking a trip abroad is certainly good for old couples, but it remains ____ whether they will enjoy it.
A．to see B．to be seeing C．to have seen D．to be seen
--Aren’t we living a happy life?
--You should not be content with what you have. _______, you must be better in every aspect of your life.
A．What’s more B．On the one hand
C．In other words D．Believe it or not
Noticing small changes early helps you _______ some big changes that are to come.
A．adapt to B．adopt to C．apply to D．devote to
You should exercise more, and you see you’re already out of ________ breath after completing such _______ small task.
A．a; the B．the; a C．/; a D．/; the
For more than a century, since he captured the spoken words "Mary had a little lamb" on a sheet of tinfoil (锡纸), Thomas Edison has been considered the father of recorded sound. But researchers say they have discovered a recording of the human voice which is nearly two ___1.___earlier than Edison's invention of the phonograph.
The 10-second recording of a singer crooning (轻声歌唱) the folk song "Au Clair de la Lune" was discovered earlier this month in an ___2.___ in Paris by a group of American audio historians. It was made, the researchers say, on April 9, 1860, on a phonautograph, a machine designed to record sounds ___3.___, not to play them back. But the phonautograph recording, or phonautogram, was made playable---converted from squiggles (潦草的字迹) on paper to sound---by scientists at the Lawrence Berkeley National Laboratory in Berkeley, Calif.
"This is a ___4.___find, the earliest known recording of sound," said Samuel Brylawski, the former head of the recorded-sound division of the Library of Congress, who is not ___5.___with the research group but who was familiar with its findings. The audio discovery could give new ___6.___ to the phonautograph, and its inventor, Edouard-Leon Scott de Martinville, a Parisian typesetter who went to his grave ___7.___that credit for his breakthroughs had been ___8.___bestowed on Edison.
The recordings made by Scott were not intended for listening; the idea of audio ___9.__ had not been conceived. Rather, Scott sought to create a paper record of human speech that could later be___10.___.
