.1. Its easy to blame the decline of conversation on the pace of modern life and on the vague changes _ place in our ever-changing world.A. taking B. to take C. take D. taken2.While _ the sun, the satellite has sent more than four billion bits of information back to earth.A. having orbited B. being orbitedC. having been orbited D. orbiting解析：答案选D.本题考查现在分词做状语。动词orbit和主语the satellite是主动关系，主动关系的话要选现在分词做状语，所以排除B和C；然后看A和D,A是完成式，只有在主句是过去时的时候，状语中的非谓语动词才要用分词的完成式。3.Reali
