Traditional works of art from different provinces ______at the culture show of the 2010 Shanghai World Expo
A.are displaying
B.is displaying
C.are being displayed
D.is being displayed
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C解析考查主谓一致以及语态。work“作品”可数名词，复数为works，应是被展出故选C。句意：来自不同省市的传统作品在2010上海世博会文化节上展出。