问题
选择题
(2014·皖南八校联考)________ Yao Ming has retired from the NBA，the pleasure we have got by watching him play basketball at home and abroad will last long.
A．Although
B．If
C．Since
D．Once
答案
答案：A
分析句子结构并结合句意可知，逗号前的内容在句子中作让步状语。A项意为“虽然”；B项意为“如果”；C项意为“自从，因为”；D项意为“一旦”。
答案： A