Rosie's incredible crossword

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Across
  1. 5. to wash
  2. 7. to listen
  3. 9. to use
  4. 10. to start
  5. 12. to borrow
  6. 13. to open
  7. 14. to be/exist
Down
  1. 1. to investigate
  2. 2. to become thirsty
  3. 3. to work
  4. 4. to understand
  5. 6. to buy
  6. 8. to say
  7. 11. to take a shower