[练习册] PREP-SC2:61-80

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Researchers in Germany have unearthed 400,000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed.
  • it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who
  • it appears had been an ancient lakeshore hunting ground and stunning evidence that human ancestors
  • it appears was an ancient lakeshore hunting ground and is stunning evidence that human ancestors
  • appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors
  • appears that it is an ancient lakeshore hunting ground, stunning evidence of human ancestors who
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