Stem-changing verbs / "Boot" Verbs

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Across
  1. 3. I return
  2. 4. she closes
  3. 7. she eats lunch
  4. 11. they prefer
  5. 13. we have
  6. 15. we think
  7. 17. we can
  8. 18. we prefer
Down
  1. 1. I can
  2. 2. you all want
  3. 5. we eat lunch
  4. 6. we want
  5. 8. you sleep
  6. 9. we return
  7. 10. we close
  8. 12. he thinks
  9. 14. you have
  10. 16. we sleep