In science the meaning of the word “explain” suffers with civilization’s every step in search ofAreality. Science cannot really explain electricity, magnetism, and gravitation; their effects can bemeasured and predicted, but of their nature no more is known about the modem scientist than toB C DThales who first speculated on the electrification of amber.
People are getting a better idea of the need to protect （ ）property rights.
Some hard plastics can be （ ）metals in manufacturing machine parts.
（ ）before we depart the clay after tomorrow, we should have a wonderful diner party.
Today the public is much concerned about the way（ ）.
Since the United States maintained its dubious distinction of having the highest divorce rate in A Bthe world, the temporary decline in divorce did not occur to the same extent in Europe. ContraryCto fears of the experts, the role of breadwinner and homemaker was not abandoned.D
