单选题
交通银行
2015-12-10
After ten years spent trying__________ to become the number-one west coast service
provider, the corporation finally succeeded.
A. high
B. down
C. hard
D. soon
参考答案
C
答案解析
本题是选择修饰tryin9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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