The day he had been looking forward to at last.A. comeB. comingC. cameD. has come

问题补充：

The day he had been looking forward to at last.

A. come

B. coming

C. came

D. has come

答案：

A. come

B. coming

(答案→)C. came

D. has come

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。