Complete the sentences in the text by selecting the correct form of the words.

1. Do you enjoy wearing Levi's blue jeans? Blue jeans have become popular all over the world, but do you know how they got started? Levi Strauss was born in Germany in the mid-1800s and emigrated to the United States as a young man. He lived in New York City and learned the dry-goods business for several years. In 1853 he moved to San Francisco (California, USA) and soon was recognized as a very successful businessman. Many of his customers were cowboys and miners. They needed strong and durable clothing. Strauss found a special fabric from France that was comfortable and lasted a long time. It was serge de Nîmes, which was called denim. Another man named Jacob Davis bought large amounts of the denim fabric from Levi Strauss. He was a tailor who made pants for hard-working men. One of his customers was continually tearing the pockets of his pants, so Jacob Davis decided to put rivets on certain parts of the pants to make them stronger. The customer loved the new pants so much that he told all his friends, and soon Jacob Davis was busy making lots of pants with rivets. Jacob Davis soon realized that rivets were a great business idea, and he didn’t want anybody to steal that idea. But he didn’t have enough money to pay for the patent. So he went to the businessman Levi Strauss and told him his idea. He said, 'If...'