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20 Mar 08:18 AM

  • Simplified Chinese (China)
Question about English (UK)

The air is usually clean in this area. but it ____ be quite dirty sometimes. can? may? why?

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  • Traditional Chinese (Hong Kong)
  • English (UK)

  • Simplified Chinese (China)

  • Traditional Chinese (Hong Kong)
  • English (UK)

  • Simplified Chinese (China)

  • Traditional Chinese (Hong Kong)
  • English (UK)

  • Traditional Chinese (Hong Kong)
  • English (UK)

  • Traditional Chinese (Hong Kong)
  • English (UK)
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