Ответ:

  • 1st paragraph:
    • always ready: always looking at
    • to like sth/to be keen on sth: to just sit around
    • teenagers: the last century children
  • 2nd paragraph:
    • less than 10 years ago: the last century
    • well-known writer: science fiction
    • to do sth often in the past: used to
  • 3rd paragraph:
    • to remember: keep in mind
    • free time: leisure
    • villages: rural areas
Ответ: See above.