People rivers for transportation since the beginning of history.A. used B. have usedC. use D. had used 题目和参考答案——青夏教育精英家教网—

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People _________ rivers for transportation since the beginning of history.

A. used B. have usedC. use D. had used

【解析】

试题分析：句意：自从历史之初人们就用河水来作为交通工具，根据句意和since引导的从句可知用完成时，现在完成时的构成have done的结构。结合语境故选B

考点：考查动词的时态的用法。

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