The day he had been looking forward to at last.
A. e
B. ing
C. came
D. has e
网友回答
A. e
B. ing
(答案→)C. came
D. has e
解析：句意：他一直盼望的一天终于到了。这里he had been looking forward to是定语从句，先行词是day，关系词是that或which，在从句中作宾语给省略了，这里缺少谓语动词，故排除B，又因为had been looking用的是过去完成时，所以这里必须用过去式，故选C。