words and idioms

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Across
  1. 3. A place where you keep books
  2. 6. A room where you sleep
  3. 7. A notebook used for writing
  4. 9. A bright object/light seen in the sky at night
  5. 11. A person who fights fires
  6. 13. Something very easy to do
  7. 15. Something very expensive
  8. 16. A machine used for washing clothes
Down
  1. 1. A place for shopping
  2. 2. in a lot of effort
  3. 4. be very busy
  4. 5. To reveal a secret
  5. 8. To understand something
  6. 10. To avoid the main topic
  7. 12. A vehicle that flies in the sky
  8. 14. Feeling very happy