E-Bay，Amazon and Shopbop are popular websites people can sell goods to each other．
A. where
B. which
C. when
D. whose
网友回答
(答案→)A. where
B. which
C. when
D. whose
解析：句意：E-Bay，Amazon and Shopbop是人们可以相互买东西的受欢迎的网站。这里使用了定语从句，先行词是popular websites，定语从句中不缺少主宾表，缺少的是地点状语，用where引导定语从句，所以选A。