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Americans don’t have enough water. Americans don’t use enough water. Americans like to use water. Americans use too much water.
An instance of arbitrariness. A consequence of permissiveness. A prototype of classics. An example of irresponsibility.
Alternate sources of energy must be found Car pools help to solve some of the energy problem The automobile uses large amounts of gasoline Great efforts have been made to solve the energy problem
The author asserts that tile account holder should be careful about the free toaster. The author thinks that the account holder is the very person who uses the toaster. The author suggests that the account holder should be careful about the bank. The author holds that the bank should be criticized.
different people have different ideas about the telephone high income is the precondition for the use of telephone telephone is essential only to those people whose career depends on it working people need a telephone
To begin a discussion, of sixteenth-century discoveries. To put the X-ray microscope in a historical perspective. To show how limited its uses are. To explain how it functioned.
counteract self-serving and confusing uses of the term establish a compromise among those who have defined the term in different ways increase comprehension of the term by providing concrete examples avoid possible misinterpretations resulting from the more common uses of the term
is a gift. is a choice. can be easily wavered. is a spontaneous impulse.
Americans don’t have enough water. Americans don’t use enough water. Americans like to use water. Americans use too much water.
Disregard for law. Lack of devotion. Lack of cooperation. Exploitation of resources.
warn people of the danger of global warming. arouse people’s sympathy for the islanders in the Pacific. blame those nations which let out greenhouse gas emissions. call for a donation to the residents in the Pacific islands.
what a low concentration of oxygen-carrying red cells will do the serious consequence of imbalance of the blood how a low concentration of white cells reduce the body' s ability to fight infection how the red cells to carry oxygen to every part of body
To warn the reader to stay away from them. To compare their voltage to that used in houses. To give an example of a living electrical generator. To describe a new source of electrical power.
a machine using solar energy efficiently has already been developed the sun is our final source of power man uses only a tiny part of the sun's energy the part of the sun's energy we use is used indirectly
poetry is not as expressive of joy as painting or music art grow out of both positive and negative feeling poets today are less skeptical of happiness artist have changed their focus of interest
the backwardness of its own language the importance of learning English the widespread of English language the great influence of the British empire
social opinions an emotional request sound arguments factual information
medical resources are often wasted doctors are helpless against fatal diseases some treatments are too aggressive medical costs are becoming unaffordable
gives an example of ideal rivers for generating electricity explains in detail what a suitable fiver for generating electricity should be states that the amount of water in the fiver is very important implies that the water plays an important role in industry
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