module 2&3

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Across
  1. 3. luckily
  2. 5. 经历
  3. 6. you can find on a bird
  4. 7. 旅游业
  5. 8. 可能性
  6. 9. having a lot of people
  7. 11. 污染的
Down
  1. 1. the way where cars travel at a high speed
  2. 2. the state of being poor
  3. 3. object,such as tables,chairs
  4. 4. 交通工具
  5. 10. 无家可归的