His company owned______dollars ten years ago.

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问题 His company owned______dollars ten years ago.

选项 A、million
B、million of
C、millions of
D、ten millions

答案C

解析 hundred,thousand,million,billion几个词用作数词时,不能用复数形式,作名词时,必须同of连用,且必须用复数形式。
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