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3. A. reason             B. rule             C. truth             D. result

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2. A. expands            B. stretches          C. reaches           D. extends

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1. A.whether             B. only             C. either            D. exactly

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20.A. happier            B. easier            C. cheaper           D. safer

F

 Every year earthquakes are responsible for a large number of death and vast amount of destruction in various parts of the world. Most of these damaging earthquakes occur ____1___ in a narrow belt which surrounds the Pacific Ocean or in a line which __2___ from Burma to the Alps in Europe. Some of the destruction is directly caused by the quake itself. An example of this is the collapse of buildings as a ___3___ of vibration. ___4___ damage results from landslides, tsunamis (large ocean waves) or major fires which are ___5____ by the quake.

  There are about a million quakes a year. Fortunately, ___6____, not all of them are destructive. The intensity of an earthquake is __7____ on the Richter Scale, which goes from 0 upward. The highest magnitude ____8___ to date is 8.9. Major damage results generally from quakes ranging from 6.0. ___9___ to this are those ___10___ epicenters are far from inhabited areas.

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19.A. result             B. decision          C. promise           D. idea

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18.A. Make             B. Ask              C. State             D. Get

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17.A. success            B. development       C. practice           D. experience

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16.A. worker            B. beginner          C. owner            D. manager

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15.A. offer              B. supply            C. mean            D. provide

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14.A. losing             B. applying          C. preparing         D. fitting

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