问题补充：
I am looking forward to your answer as soon as possible.
A. receiving
B. being received
C. receive
D. be received
答案：
(答案→)A. receiving
B. being received
C. receive
D. be received
解析：看出非谓语动词.句意:我一直在盼望尽快地得到你的回复.短语look forward to中to是介词,后面接名词或者动名词做宾语,动名词作宾语表示抽象动作,结合语境可知receive的逻辑主语是句子主语,故不用被动语态,选A.
