A connected dream?--Crossword

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Across
  1. 3. To continue to live after an accident, war or illness
  2. 7. Extremely important and necessary
  3. 10. Very big, fast, powerful
  4. 11. The feeling that an event or place gives you
Down
  1. 1. Relating to towns and cities
  2. 2. To continue for only a limited period of time
  3. 4. To separate one person, group, or thing from other people or things
  4. 5. To recognize and understand the difference between two or more things or people
  5. 6. Far away in space or time
  6. 8. One part or feature of a whole system, plan, or piece of work
  7. 9. A performance given by musicians or singers