The Lightning Thief

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Across
  1. 3. impaired ability to learn to read. ...
  2. 5. strongly motivated to succeed. ...
  3. 6. feel desirous of another's advantages. ...
  4. 7. urgently needed; absolutely necessary. ...
Down
  1. 1. thin and weak. ...
  2. 2. ...
  3. 4. joyful and proud especially because of success. ...