问题补充：
The moment we had been looking forward toat last.
A. coming
B. come
C. comes
D. came
答案：
A. coming
B. come
C. comes
(答案→)D. came
解析：本题很容易误选Ａ，把come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。
