For each question, choose the correct answer.
William Perkin was born in London in 1838. As a child he had many hobbies, including model making and photography. But it was the (1)___ of chemistry that really interested him. At the age of 15, he went to college to study it .
While he was there, he was (2)___ to make a medicine from coal. This didn't go well, but when he was working on the problem, he found a cheap (3)___ to make the colour purple. At that (4)___ it was very expensive to make clothes in different colours. William knew he could make a business out of his new colour. Helped by his father and brother, William (5)___ his own factory to make the colour. It sold well, and soon purple clothes (6)___ very popular in England and the rest of the world.