问题补充：
—Could you tell me ?
—I don’t know. It seemed to be unimaginable.
A. why “Gangnam style” is known to all in China
B. when was “Gangnam style” so popular in China
C. where “Gangnam style” is popular
D. how was “Gangnam style” well-known in China
答案：
(答案→)A. why “Gangnam style” is known to all in China
B. when was “Gangnam style” so popular in China
C. where “Gangnam style” is popular
D. how was “Gangnam style” well-known in China
解析：英语宾语从句中一般为陈述语序。根据下文，我不知道。这好像是难以想象的。可知上文问的是，你能告诉我为什么中国人人都知道江南style吗？
