We know that the last part of the 20th century saw
more large inventions: the helicopter in 1909,
movies by 1926, the computer in 1928 and the
jet plane in 1930. The middle part of the 20th century
bring
new ways to help people get over disease. They made
people healthier and live long. By this time most
people had led a very well life. Of course new inventions
continued to be made. The world is known
to man and the universe was not. Many countries began
look for ways to go into space. Russia made the first step. |
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last Saturday．_______
last night．________
than last year．_______