Unit 2 Vocabulary

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Across
  1. 3. someone you don't know
  2. 4. to join
  3. 6. hopeful; helpful
  4. 9. a study of information
Down
  1. 1. to grow into
  2. 2. many different kinds of something
  3. 5. informal; not serious
  4. 7. to make better
  5. 8. something to do