单选题David Smith refers to himself as having been “a clothes addict” because _____.A he often wore khaki pants and a sports shirtB he couldn’t stand a clean appearanceC he wanted his clothes to look neat all the timeD he didn’t want to spend much money on c

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
According to this passage, which of the following is FALSE? ( )

A. Many workers don't like a conservative dress code．
B. Comfortable clothes make workers more productive．
C. A casual clothes code is welcomed by young workers．
D. All the employers in the U．S． are for casual office wear．

David Smith wears casual clothes now, because___________.

A.they make him feel at ease when working
B.he cannot afford to buy expensive clothes
C.he looks handsome in casual clothes
D.he no longer works for any company

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
According to this passage, which of the following is TRUE?

A. Company workers started to dress down about twenty years ago．
B. Dress-down has become an everyday phenomenon since the early 1990s．
C. "Dress-down Friday" was first given as a favor from employers．
D. Many workers want to wear casual clothes to impress people．

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
David Smith wears casual clothes now, because ______

A. they make him feel at ease when working
B. he cannot afford to buy expensive clothes
C. he looks handsome in casual clothes
D. he no longer works for any company

All the flights ______ because of the snowstorm, we had to take the train instead.

A.were canceleD
B.had been canceleD
C.having canceleD
D.having been canceleD.

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
David Smith refers to himself as be-ring been "a clothes addict" because_____．

A. he often wore khaki pants and a sports shirt
B. he couldn't stand a clean appearance
C. he wanted his clothes to look tidy and clean all the time
D. he didn't want to spend much money on clothes

Five years ago, David Smith wore an expensive suit to work every day． "I was a clothes addict," he jokes． "I used to carry a fresh suit to work with me so I could change if my clothes got wrinkled．" Today David wears casual clothes--khaki pants and a sports shirt to the office． He hardly ever wears a necktie． "I'm working harder than ever," David says, "and I need to feel comfortable．"
More and more companies are allowing their office workers to wear casual clothes to work． In the United States, the changes from formal to casual office wear have been slow． In the early 1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Friday)． This became known as "dress-down Friday" or "casual Friday"． "What started out as an extra one-day-a-week benefit for workers has really become an everyday thing．" said business adviser Maisly Jones．
Why have so many companies started allowing their workers to wear casual clothes' One reason is that it's easier for a company to attract new workers if it has a casual dress code． "A lot of young people don't want to dress up for work," says the owner of a software company, "so it's hard to hire people if you have a conservative dress code．" Another reason is that people seem happier and more productive when they are wearing comfortable clothes． In a study made by Levi Strauss and Company, 85 percent of employers said that casual dress has a side effect on work． Supporters of casual office wear also say that a casual dress code helps them save money． "Suits are expensive, if you have to wear one every day," one person said． "For the same amount of money, you can buy a lot more casual clothes．"
In this passage, the following advantages of casual office wear are mentioned EXCEPT． ( )

A. saving worker's money
B. making workers more attractive
C. improving worker's feeling
D. making workers happier

根据下列内容，回答186-190题。
Five years ago, David Smith wore an expensive suit to work every day."1 was a clothes ad-dict," he jokes,"I used to carry a fresh suit to work with me so I could change if my clothes gotwrinkled." Today David wears casual clothes--khaki pants and a sports shirt--to the office. Hehardly ever wears a necktie."I'm working harder than ever," David says,"and I need to feelcomfortable."
More and more companies are allowing their office workers to wear casual clothes to work. Inthe United States, the changes from formal to casual office wear have been slow. In the early1990s, many companies allowed their workers to wear casual clothes on Friday (but only on Fri-day). This became known as "dress-down Friday" or "casual Friday". "What started out as an ex-tra one-day-a-week benefit for workers has really become an everyday thing." said business adviserMaisly Jones.
Why have so many companies started allowing their workers to wear casual clothes? One rea-son is that it' s easier for a company to attract new workers if it has a casual dress code. "A lot of youngpeople don't want to dress up for work," says the owner of a software company, "so it's hardto hire people if you have a conservative dress code." Another reason is that people seem happierand more productive when they are wearing comfortable clothes. In a study made by Levi Straussand Company,85 percent of employers said that casual dress has a side effect on work. Supportersof casual office wear also say that a casual dress code helps them save money. "Suits are expensive,if you have to wear one every day," one person said,"For the same amount of money, you can buya lot more casual clothes."
David Smith refers to himself as having been "a clothes addict" because___________.

A.he often wore khaki pants and a sports shirt
B.he couldn't stand a clean appearance
C.he wanted his clothes to look tidy and clean all the time
D.he didn't want to spend much money on clothes