Along the major rivers that traverse the deserts of northeast Africa, the Middle East, and northwest India, the combination of a reliable supply of water and [good growing conditions both encouraged farming traditions that, in places, endure in] at least 6,000 years. (A) good growing conditions both encouraged farming traditions that, in places, endure in (B) good growing conditions encouraged farming traditions that have, in places, endured for (C) of good growing conditions have encouraged farming traditions that, in places, endured for (D) of good growing conditions both encouraged farming traditions that have, in places, endured (E) of good growing conditions encouraged farming traditions that have, in places, been enduring for Ans.(B) 疑问是(E)选项中最後的have been enduring是否有误? OG的解释是"rhetorically inappropriate and sounds exaggerated" 但实在是不懂为什麽这样的时态inappropriate & exaggerated OG的解答一开始也写了"A combination of factors (in the past) encouraged farming traditions that are still with us today." 那(E)的时态不是也有still with us today的含意? 先谢谢高手解答:) --

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