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Ending air pollution is not going to be cheap. However, since many scientists tell us that a normal, healthy person can live about five weeks without food, and five days without water, but only five minutes without air, it may be well worth the price.

A. We can lower the price of food by going without it for five weeks.
B. A lot of money can be saved because man can live five weeks without food.
C. Ending air pollution is expensive, but it may be worth the money that we have to spend on it, because clean air is so important to us.
D. That a person can live five weeks without food shows how healthy people are.

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A general feature of modern society is the gap that separates the adult from the young, and it is most painfully felt between parents and children.In this sentence, we are talking about the gap between .

A. families
B. society
C. parents
D. generations

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As there are so many laws, probably no one knows all of them. Consequently, it may happen that a man violates a law without knowing it. In such a case, his ignorance of the law does not excuse him from getting punished.

A man without the knowledge of laws can't be excused from punishment if he violates them.
B. One who does not know laws should be punished.
C. If someone knows all of the laws, he can be excused from getting punished.
D. If one is ignorant of the laws, he won't violate them.

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Dr. Drew has a younger brother and couple of sisters, older than he is.Including Dr. Drew and his parents, how many members are there in his family?

A. Three.
B. Six.
C. Four.
D. Five.

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France, ignoring the worldwide protest and concern for safety of mankind, conducted nuclear test in the South Pacific. Most people have got very angry at the news.What do you know from the information of the sentence above?

A. Nuclear tests are safe for mankind.
B. World opinion had no effect onFrance’s behavior.
C. France gave up the test in the South Pacific.
D. The French love the South Pacific.

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