Greek root word puzzle

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Across
  1. 2. a horse with a horn
  2. 4. your salary gets paid every month
  3. 5. tells how fast you are driving
  4. 7. Jo-Anne needed to make a difficult choice
  5. 8. when three children are born
Down
  1. 1. we took this at theme park to see everything
  2. 3. my grandfather is celebrating his 100th birthday
  3. 6. people used this before mobile phones to contact others
  4. 7. when you hurt your arm in a sport match