A euphemism (from the Greek words eu--well and pheme--speak) is a word or expression that is used when people want to find a polite or less direct way of talking about difficult or embarrassing topics like death or the bodily functions. Most people, for example, would find it very difficult to say in plain language that they have arranged for their sick old dog to be killed. They would soften the pain by saying：We had Ruby put down or We had Ruby put to sleep. Many people prefer to call someone plain than ugly, or cuddly rather than fat.
Euphemisms are an important part of every language, but it seems that English has an ever-growing number of them. The non-native speaker not only has to make sense of the euphemisms he hears, he also has to learn which euphemisms are appropriate in any particular situation. He might be aware that his American friend needs to use the toilet when she asks where the bathroom (or restroom, or comfort station) is, but he is less likely to guess that his English friend has the same need when he says he has to see a man about a dog. He might have learned, for example, that in the family way is a euphemism for pregnant. If, however, he says to his boss," Congratulations! I hear your wife is in the family way," he would be using an expression that is too familiar for the circumstances.
Schools are full of euphemisms. At Frankfurt International School, for example, the special lessons given to students who are having difficulties in their school subjects are called Study Center (in the middle school) and Academic Workshop (in the high school). Teachers rightly do not want to upset students or parents by being too frank or straight-forward, and usually choose a softer word or expression to convey the same message.
According to the passage, people use euphemisms in order to     .

A．make themselves understood

B．attract attention

C．to sound straightforward

D．avoid embarrassment

A person who is described as plain and cuddly is in fact       .

A．tall and handsome	B．ugly and fat
C．ugly but tall	D．pretty and slim

When an English lady says she has to see a man about a dog, she might want to       .

A．go to the toilet

B．see an ugly friend

C．have her old dog killed

D．see a pregnant woman

The main purpose of Paragraph 2 is to       .

A．stress that euphemisms are an important part of every language

B．inform readers that English has an ever-growing number of euphemisms

C．warn English learners to be careful about the meaning and use of euphemisms

D．suggest non-native speakers use euphemisms as often as possible

At Frankfurt International School, the students who receive lessons in Study Center     .

A．work hard at their lessons

B．do well in school

C．have poor grades in the subjects

D．prefer to learn more