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A telephone is essential. What many people think necessary is not necessary at all. You would not use a telephone unless you were in a hurry. A car is essential for a taxi-driver.
An instance of arbitrariness. A consequence of permissiveness. A prototype of classics. An example of irresponsibility.
They give children correct answers. They point out children' s mistakes to them. They allow children to mark their own work. They encourage children to copy from one another.
It is second to intelligence. It evolves from common sense. It is to be pursued. It underlies power.
To ensure equal pay for women. No solution is clearly suggested. To explain why women are paid less. To force employers to hire more women.
he questions the truth of "no gain without pain" he does not think the productivity revolution works he wonders if the official statistics are misleading he has conclusive evidence for the revival of businesses
Search for new energy sources. Outlaw motor transportation. Accept a new lifestyle. Adopt a new form of government.
A kind of overlooked inequality. A type of conspicuous bias. A type of personal prejudice. A kind of brand discrimination.
It underlies power. It is to be pursued enthusiastically. It is second to terrorism. It is to be dealt with cautiously.
Package is just an advertisement. Buyers shouldn’t believe the information on the package too much. The package has nothing to do at all with the product. Buyers can always find answers in the information on the package.
By copying what other people do. By making mistakes and having them corrected. By listening to explanations from skilled people. By asking a great many questions.
His family could not afford it. A college education was rather uncommon in his times. He didn't like the young Virginian gentlemen who went to college. The author doesn't give any reason.
They tell us which one of the tracks the universe will use. They enable us to alter the course of universe. They give us information about the lunar surface. They determine which course the universe will take in the futur
Different families have different ways of life. Different definitions could be given to the word. Different nations have different families. Different times produce different families.
To be or not to be against the rules has little to do with being wrong or right. To say something is wrong almost suggests that it is against the rules. A rule is always something that stops what is wrong. A rule is always something that encourages what is right.
They are falling out of use in the United States They tend to be ignored by drivers in a short period of time. They are applicable only on broad roads. They cannot be applied successfully to traffic circles.
by what is or is not against the rules. by its impact on other people. by one’s thoughts and feelings towards it. by the kind of damage it does to others.
The power of true friendship can conquer anything. Young people should be careful in choosing their friends. Drugs can destroy innocent young people. Parents should talk with their children often.
They are getting impatient. They are noisily dozing off. They are feeling humiliated. They are busy with word puzzles.
He feels amused by their premature behavior. He thinks it is a phenomenon worthy of note. He considers it a positive development. He seems to be upset about it.
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