The moment we had been looking forward to at last.
A. ing
B. e
C. es
D. came
网友回答
A. ing
B. e
C. es
(答案→)D. came
解析：本题很容易误选Ａ，把e看作look forward to的宾语，因此首先要]理清句子结构，句子的主语是The moment,we had been looking forward to是省去that的定语从句，修饰The moment,所以需要填入的不是look forward to的宾语，而是句子的谓语，根据从句的时态，主句的谓语应是一般过去时。