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V. Read the following text and decide which answer best fits each numbered blank. Although computers can be used as a tool to spread awareness about problems in the environment, they cause (31) _______ of environmental problems themselves. Pollution caused by the production of computer (32) _______, as well as from the cleaning agents used to clean computers, is (33) _______ great hazard to the environment and the people that live in it. People leave (34) _______ computers on nonstop resulting in a lot of energy consumption and enormous amounts of paper are (35) _______ used daily to print out electronically stored data. It causes health problems as well as (36) _______ problems and is in urgent need of treatment. Use computer only when needed. If we all shut (37) _______ our computers at night the energy savings could light the Eiffel Tower 24 hours a day for 720 years. The increased (38) _______ of computers in the workplace has brought about the development of a number of health concerns. Many individuals who (39) _______ at a computer report a high level of job-related complaints and symptoms, including ocular discomfort, muscular strain and stress. The (40) _______ of discomfort appears to increase with the amount of computer use. 31. A. a lot B. lot C. many D. much 32. A. software B. hardware C. glassware D. footwear 33. A. a B. an C. the D. x 34. A. they B. them C. their D. theirs 35. A. be B. to be C. being D. been 36. A. economic B. economy C. economics D. economize 37. A. up B. down C. on D. under 38. A. used B. to use C. to be used D. use 39. A. working B. work C. works D. to works 40. A. area B. range C. level D. size
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