u1:1.responsible 2.ultimatel, 3.stains 4.highlight 5.sparkled 6.sample 7.involve 8.historic 9.remarkable 10.surrounded u2:1. accomplish2. Ambition3. obstacles4. dominates5. seemingly 6. vision7. solutions8. releasing9. individuals10. ideal u3:1.tends, 2.culture, 3.applied, 4.bored, 5.secure, 6.highly, 7.negative, 8.behavior, 9.avoid, 10.ignored u4: 1.undertaken, 2.had intended, 3.resources, 4.inquiries, 5.investigated, 6.recommend, 7.participates, 8.aspects, 9.hesitate, 10.economical 纯手打,望采纳,谢谢~~