Straight, Curvy, Up or Down Crossword

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Across
  1. 5. a flying machine with two wings
  2. 6. a long mark
  3. 9. a machine used for farming
  4. 10. not curvy
  5. 11. not straight; many turns
Down
  1. 1. the opposite of up
  2. 2. a fast moving machine used to transport people or things.
  3. 3. a rubber toy filled with air
  4. 4. the opposite of down
  5. 7. a machine for moving things up and down
  6. 8. a flying machine with blades