The Most Useful Inventions

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Across
  1. 3. physically or mentally ill
  2. 4. show your choice of a person or an issue in an election
  3. 6. to communicate with sb especially by telephone
  4. 8. that can help you to do or achieve what you want
  5. 10. a form of energy
Down
  1. 1. communicate with others frequently
  2. 2. how hot or cold a thing of place is
  3. 5. your feelings or thought about sth/sb
  4. 7. through a period of time
  5. 9. without doubt ,certainly