【题目】The letter he had been looking forward to________at last this morning.
A．come B．comes C．coming D．came
在线课程【答案】D
【解析】
试题分析：考查谓语动词的用法：句意是：他一直盼望的信终于来了。look forward to “盼望”其中to是介词，以为是动名词做宾语，但这题look forward to的宾语是theletter，he had been looking forward to是定语从句，这句话缺少谓语，填came。
考点 : 考查谓语动词的用法