Levi Strauss was born in 1829 in Germany.He was the fifth of six children.In 1845，his father died.All six children decided 43._______(go) to the United States.Strauss went to the southeastern part of the US.For eight years，he walked along the country roads 44._______(sell) dry goods from door to door—just like his father in Germany.
In 1853，Strauss decided to move to San Francisco，45. _______thousands of people were looking for gold.46. _______his way to California，Strauss sold almost all of his dry goods.He had only one thing 47._______(leave)some canvas (帆布)．
In California，Strauss tried to sell the canvas to the gold miners.He said they could make tents from the canvas.But they weren’t 48._______(interest) in canvas for tents.Strauss didn’t know 49._______to do with the canvas.Before long Strauss found the miners needed new pants.There were holes in their pants 50._______the cloth wasn’t strong.He decided to make the canvas 51._______pants.They called them “Levi’s”．Later, Strauss stopped using canvas and used a different cloth.It was a heavy cotton cloth—the same kind people wear today.
Levi Strauss died in 1902.He never married and left money to his nephews.He left the world much more—the jeans 52._______so many people wear.