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In 1642 a French student invented the first 13 ______ calculator. He was only 18 and the counting machine was a present for his father. The father worked as a tax collector and the young man wanted to make his job 14 ______.
The talented inventor made several machines but nobody 15 ______ interested. The young man was ahead of his time. Many years passed before people 16 ______ how useful these machines could be and started mass producing them.
Today most mechanical calculators have been 17 ______ with electronic models. These small devices can 18 ______ a lot of mathematical operations. You just need to enter the numbers by pressing the keys and you’ll see the final result on the screen in no time.
Прочитайте текст и заполните пропуски 13–18 словами, напечатанными в правой колонке под цифрами 1–8. Каждое из этих слов может быть использовано только один раз. В ответе укажите цифры, под которыми значатся выбранные Вами слова. Два слова в этом списке 1–8 лишние.
The father worked as a tax collector and the young man wanted to make his job 14 ______.
1) realized
2) easier
3) perform
4) mechanical
5) was
6) replaced
7) farther