subject

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Across
  1. 4. strong!
  2. 6. do re Mi Fa Sol La Ti
  3. 7. 1919
  4. 8. Mexico is on……
Down
  1. 1. ABC
  2. 2. Na+Cl=NaCl
  3. 3. 4+3=7
  4. 5. frog
  5. 9. drawing,painting……