past tense

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Across
  1. 4. Yesterday
  2. 8. Last week
  3. 13. Last summer
  4. 15. Last night
  5. 16. Days
Down
  1. 1. A lot of time
  2. 2. 10 years ago
  3. 3. Seconds
  4. 5. Hours
  5. 6. Weeks
  6. 7. Last year
  7. 9. The day before yesterday
  8. 10. Years
  9. 11. Last
  10. 12. Minutes
  11. 14. Months