Luyện tập tổng hợp

NC

Fill in the numbered blanks in the passage with ONE suitable word from the box. Write your answers on the answer sheet.

employment complicated polluting such; benifit
problems millions reduced engineer

Everyone want to reduce pollution.But the pollution (1)_____is as complicated as it is serious. It is complicated because much pollution is caused by things that (2) ________ people. For example, exhaust from automobiles causes large percentage of air pollution. But the automobile provides transportation to (3) ______ of people. Factories discharge much of the material that pollutess air and water but factories give (4) to a large number of people.

Thus, to end or greatly reduce pollution immediately, people would have to using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually (5) _____ in several ways, scientists and (6) _____ can work to find ways to lessen the mount of pollution that (7) _________ things as automobiles and factories cause. Governments can pass and enforce that require businesses and individuals to stop, or cut down on certain (8) ________ activities.


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