America will never again have as a nation the spirit of adventure as it ( ) before the West was settled. ( 章节：2 难度：2)_做题室

单项选择题America will never again have as a nation the spirit of adventure as it ( ) before the West was settled. ( 章节：2 难度：2): A、could; B、did; C、would

正确答案：B
答案解析：
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