We intend to go to India,even if air fares _____gagin between now and next summer.
A.went up B.will go up C.were going up D.go up
但我觉得是B.
答案里的解析是even if 引导的让步状语从句用现在是表将来时,但我不理解这句话,请帮我理解一下,顺便告诉我”even if 引导的让步状语从句用现在是表将来时“的用法是怎么样的,在下