The Last Tree in the City

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Across
  1. 1. A word that rhymes with tree
  2. 3. singular of leaves
  3. 4. A words that rhymes with heart
  4. 7. Past tense of carry
Down
  1. 1. Opposite of empty
  2. 2. A mode of transportation on land
  3. 5. Tall woody plant
  4. 6. Present tense of tried