The OPEC has recently cut back production and the price of oil has been to $90 a barrel

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A. risen
(答案→)B. raised
C. arisen
D. arose
解析：考查动词辨析。rise是不及物动词，上升；raise 及物动词，提高，举起；arise是不及物动词，出现；arose是arise的过去式。这里指石油输出国组织削减产量，是有的价格被提高到90美元一桶。故用B。