IV. Read the text and choose the correct answer A, B, c or D for each of the gaps. Although the world’s energy resources have(31)_____many millions of years to produce, we are(32) _____beginning to exhaust these supplies. Recently UN committeereported that(33) _____world’s oil and gas supplies would last about 100 years if used(34) _____. The report stated that there would be enough oil and gas for a(35) _____only if the present demand could be(36) _____. If the demand continued (37) _____grow, the report said that fuel supplies would last for less than forty years. According to the report,(38) _____governments now take steps (39)_____control the amounts of fossil fuels(40) _____are used. 31. A. made B. taken C. used D. spent 32. A. quickly. B. fastly C. carefully D. slowly 33. A. a B. an C. the D.x 34. A. careless B. wasteful C. quickly D. carefully 35. A. year B. decade C. century D. millennium 36. A. controlled B. controlling C. control D. to control 37. A. at B. on C. in D. to 38. A. the B. a C. an D. X 39. A. for B.by C. to D. with 40. A. who B. whom C. when D. that