2. 外语
  3. America will never again have as a nation the spirit of adventure as it______before the West was settled.

America will never again have as a nation the spirit of adventure as it______before the West was settled.

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问题 America will never again have as a nation the spirit of adventure as it______before the West was settled.
选项 A、has
B、did
C、was
D、would
答案B
解析 根据题干中的before the West was settled可知，此空的时态应是过去时，由此排除[A]。再根据语法结构可知，as后接从句肯定有省略成分。应是：as it had the spirit of adventure…，其中had应由与其时态一致的助动词did来代替，故答案为[B]。
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