Before Anglo-American westward expansion, there were already ( ) settlements in the mid-West ( 章节:2 难度:1)
- A、a number of
- B、number of
- C、a little of
- D、little of
正确答案:A
答案解析:有

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Before Anglo-American westward expansion, there were already ( ) settlements in the mid-West ( 章节:2 难度:1)

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