U4 vocabulary

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Across
  1. 4. the act of discovering somebody or something
  2. 6. a time when there is a war
  3. 7. a book which sells well
  4. 8. related to the jewels
Down
  1. 1. the state of feeling bored
  2. 2. the feeling of not being happy
  3. 3. from all parts of the world
  4. 5. which is imagined and not true