问题补充:
—You missed the train?
—Yes. I had gone by taxi.
A. If only
B. Only if
C. So long as
D. as long as
答案:
(答案→)A. If only
B. Only if
C. So long as
D. as long as
解析:考查状语从句的引导词。If only 要是……就好了,Only if 只要,So/ as long as只要,句意:你错过了火车?是的,要是我乘出租车去就好了。所以选A。