Заполните пробелы в следующем тексте, используя данные глаголы в грамматически подходящих временах.
Before it was over, the 20th century (see) many radical changes. Almost every area of human activity (witness) innovations. The 20th century (start) with steam-powered ships and ended with the space missions. By the turn of the century, automobiles already (replace) horses. Later, antibiotics (save) millions of lives. For a couple of decades people (take) their first small steps into space until they (make) a leap on the Moon surface. Computer technology (make) the whole difference. If a child is asking the parents to buy him or her something as a present, that (usually/be) a computer. Many people now (stand) a good chance of improving their health thanks to technological progress in medicine. I believe mankind (achieve) even more by the end of the 21st century but the 20th century will hold its unique place in history forever.
