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minhdung19052007
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A.Choose the word or phrase - a, b, c, or d - that best completes the sentence. B.Choose the word or phrase - a, b, c or d - that needs correcting. 31.Among us students are many foreigners whose attend language classes at the south campus. 32.Is it right that politicians should make important decisions without consulting the public to who they are accountable? 33.The environment where wild animals are living is now badly destroying. 34.AU nations may have to make fundamental changes in their economic, political, and the technological institutions if they are to preserve the environment. 35.Soon after Mel has finished his thesis, he will leave for Boston, where he has a job waiting on him. 36.Many of the important products obtained from trees, one of the most important is wood pulp, which is used in paper-making. 32. Biochemists have solved many of the mysteries about phonosynthesis, the process which plants make food. 37.Air pollution, together with littering, are causing many problems in our large, industrial cities today. 38.The area where a microchip is manufactured must be the most cleanest environment possible. 39.The mining of materials often bring about the destruction of landscapes A B C and wildlife habitats. II. READING A.Fill in each blank with one appropriate word from the box. represents fueled oversee alarming lost imported establish reduced covered sought derived cleared. The rate at which the deforestation of the world is proceeding is (31) ........ In the 1950 approximately 25 percent of the earth's land surface had been (32) ....... with forests, and less than twenty-five years later the amount of the forest land was (33) ....... to 20 percent. This decrease from 25 percent to 20 percent from 1950 to 1973 (34) ....... an astounding 20 million square kilometers of forests. Predictions are that all, additional 20 million square kilometers of forest land will be (35) ....... by 2020. The majority of deforestation is occuring in the tropical forests in developing countries, (36) ....... by the developing countries' need for increased agricultural land and the desire on the part of developed countries to import wood and wood products. More than 90 percent of the plywood used in the United States, for example, is (37) ....... from, developing countries with tropical rain forests. By the mid-1980s, solutions to this expanding problem were being (38) ......., in the form of attempts to (39) ....... an international regulatory organization to (40) ....... the use of tropical forests.

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