whats your favorite invention?

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Across
  1. 2. It is inexpensive. I use it every day.
  2. 4. They can open doors.
  3. 5. I use it to send messages and play online games.
  4. 7. I watch news with it.
  5. 8. I search information to do my homeworks.
  6. 9. I prepare delicious cakes with it.
  7. 10. I print my homeworks with it.
Down
  1. 1. Connect people around the world.
  2. 3. Usually, I ride it.
  3. 6. I connect my laptop and I can listen my favorite music.