The price of oil is increasing so rapidly.
Indeed ! The oil prices by 10 and 20 percent so far.
Aincreased
Bincrease
Chad increased
Dhave increased
网友回答
A. increased
B. increase
C. had increased
(答案→)D. have increased
解析：考察时态。根据时间状语so far可知，本题使用现在完成时。故D正确。