is gradually becoming more popular than both silver and white
is still the favourite colour Ford uses for its cars
has become more popular recently than it used to be
It is clear in the passage that the Model-T Ford came in a huge variety of colours
was only manufactured in one colour
was wanted mainly in black
was most popular in silver
came in silver, black, and white
150 THE SPIRIT OF ENTERPRISE As the human race evolved from its ancestors, many factors affected its survival and the course of its evolution. While we lacked strength and speed, we were endowed with intelligence which enabled us to acquire first weapons and shelter, then fire, art, domestic animals, crops, medicines, sciences, machines and, . finally, all the blessings and curses of modern society. Throughout history, our race has been industrious and resourceful, driven by instinct to explore and discover, to invent, and to improve and protect our ways of life. Of course, these instincts exist to varying degrees in all people, and are essential to the survival of our civilization - but alone they are not enough. Major progress has always called for individuals to lead the way with inventions, voyages of discovery, or other projects that have gone that one step further. Often these endeavours received little support when they were initiated; typically, they were called difficult or impossible, untried or too risky, eccentric or even worthless. But the bold and energetic people who undertook them overcame adversity, succeeded and, eventually, were recognized for their achievement. Then the words used to describe them changed, and they were admired for their originality, inspiration, courage and tenacity! Why did these individuals succeed? It was because all of them possessed an extra measure of that quality which has been the catalyst of virtually all progress in our history - the "spirit of enterprise".