题目内容：
The casual Friday concept (概念) was one of the first signs that strict dress rules for offices were starting to relax. The principle of casual Friday seems to have appeared around the 1950s. It was probably in response to the changing attitudes towards workplaces. Over time, some offices have relaxed their dress rules even more by using a “business casual” dress rule.On casual Friday, employees may wear clothes which are considered to be “business casual”, meaning they still obey certain standards. Clothes must be clean and in good condition, with no spots. Men are generally allowed to wear casual trousers and bright-colored clothes, and in some offices they may be allowed to wear button-down (领尖有纽扣的) shirts or polo shirts, with or without a tie. Women often wear neat skirts or dresses, and casual trousers are common and generally allowed to wear, except in very formal workplaces.
As a general rule, extremely casual clothes, like jeans, shorts, T-shirts, tanks, and so on, are not encouraged on casual Friday. Employees are still expected to make an effort to look professional, out of respect for their offices and their customers.
(1)
(2分)Why did casual Friday appear in workplace?
A. Employers did not like strict dress rules.
B. Employees were more efficient on casual Friday.
C. The attitudes towards workplaces changed.
D. The demands for products started to relax.
(2分)Casual Friday means ________.
A. employees may wear what they like
B. employees are not allowed to wear formal suits
C. employees may decide not to meet their clients
D. employees still have to obey certain dress standards
Men are generally allowed to wear ________ on casual Friday.
A. polo shirts
B. tanks
C. neat skirts
D. extremely casual clothes
Why are employees still expected to look professional?
A. To be business casual.
B. To show respect for their offices and customers.
C. To relax their dress rules a little bit.
D. To fit in with formal workplaces.
)Which of the statements is TRUE about casual Friday?
A. It seems to have appeared around the 1990s.
B. It has become very popular all over the world.
C. Clothes must be clean and in good condition, with no spots.
D. Casual trousers are allowed even in very formal workplaces.
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