After ten years spent trying______to become the number-one west coast service provider, the corporation finally succeeded.

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问题 After ten years spent trying______to become the number-one west coast service provider, the corporation finally succeeded.

选项 A、high
B、down
C、hard
D、soon

答案C

解析 本题是选择修饰"trying"的副词的问题。句子表示“努力了十年,”因此C意为“努力地”为正确答案。
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