题目内容：

Levi Strauss—a name that is now famous—was the man ____invented jeans. Levi Strauss was born in Germany in 1829, but went to the USA as _____young man. At first he lived in New York, ____in 1853 he moved to San Francisco, where he worked with his brother. They worked in a shop selling clothes to men who ____for gold in the California Gold Rush. The men were working very______in difficult conditions, and they needed very strong trousers.

Strauss was the first man to begin producing special, strong trousers______working men. He made these trousers from a tough fabric( 结实的织物) called "denim"（牛仔布）probably from a town ___Nimes in France. Many people now think the English word "denim" ____from the French words "de Nimes", which means "from Nimes". Later, Strauss added special metal buttons to the trousers to make them even _____and they immediately became very popular.

In the early part of the 20th century, only working men wore jeans in workplaces like factories. But after the Second World War, teenage boys and young men at college started to wear__to go out. These boys called the trousers "jeans". In the 1960s, more young Americans started__them as informal, casual clothes outside the workplace and denim jeans became fashionable.

At that time, jeans were usually flared( 向外展开的), but today, ____many different styles of jeans: straight, baggy, flared, low-waisted—almost any style you can __.

Today, _____people wear jeans to go to work in offices, as well as to go out. Jeans are as ____today as they ever were, but there is one thing no one is really sure about—why are they called "jeans"?

1.A. what    B. where    C. who    D. which

2.A. a    B. an    C. the    D. /

3.A. and    B. or    C. but    D. so

4.A. work    B. were working    C. are working    D. have worked

5.A. hard    B. hardly    C. harder    D. more hardly

6.A. to    B. at    C. for    D. by

7.A. call    B. called    C. calling    D. to call

8.A. comes    B. come    C. came    D. has come

9.A. good    B. better    C. best    D. the best

10.A. it    B. its    C. they    D. them

11.A. wear    B. wearing    C. wore    D. worn

12.A. have    B. has    C. there are    D. there is

13.A. imagine    B. imagined    C. imagining    D. to imagine

14.A. million    B. millions    C. million of    D. millions of

15.A. popular    B. popularly    C. more popular    D. more popularly