L11课前预习

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Across
  1. 3. We should take one safety ________（n. 预防措施）before travelling.
  2. 4. No one can solve such a difficult ________（n. 情况）quickly.
Down
  1. 1. This kind of traditional ________（n. 文化）has a long history in China.
  2. 2. Please ________（v. 确认）your booking information before setting off.