How to learn english well?

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Across
  1. 1. learn
  2. 4. long
  3. 5. is
  4. 6. to
  5. 7. do
  6. 8. have
  7. 10. it
  8. 11. easy
Down
  1. 2. English
  2. 3. How
  3. 6. to
  4. 7. decided
  5. 9. as
  6. 12. you