问题补充:
The OPEC has recently cut back production and the price of oil has been to $90 a barrel (桶).
A. risen
B. raised
C. arisen
D. arose
答案:
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。