collective nouns

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Across
  1. 3. a ________ of drawers
  2. 4. a ________ of lions
  3. 5. a _______ of pearls
  4. 6. a _________ OF thieves
Down
  1. 1. a _________ of puppies
  2. 2. a __________ of musicians
  3. 3. a ________ of singers
  4. 5. a ______ of bees