—What’s your feeling now?
—I am terribly sorry. If only I here yesterday!
A. came
B. would have e
C. have e
D. had e
网友回答
A. came
B. would have e
C. have e
(答案→)D. had e
解析：考察虚拟语气，if only 意为要是……就好了，根据yesterday可知，该句是对过去的虚拟，对过去的虚拟用过去完成时。
句意为，---你现在感觉怎么样？----我非常抱歉，要是我昨天来就好了。