The four Grottoes of China refer to（ ）. A: Longmen Grottoes B: Dunhuang Mogao Grottoes C: Yungang Grottoes D: Maijishan Grottoes

When was the Longmen Grottoes listed as a state key cultural relic protection site.（ ） A: In 1999 B: In 1961 C: In 1866 D: In 1990

Yungang Grotto and Longmen Grotto mainly represent ( ). A: the content of Buddhism B: the content of Taoism C: the content of Islam D: the content of Christianism

_____is a Buddhist temple in the eastern portion of the city.( ) A: The Longmen Temple B: The Daxiong Temple C: White Horse Temple D: The Yungang Temple

Which places of the following places of interest are inscribed on the World Heritage List? A: Yu Garden in Shanghai B: Longmen Grottoes C: Classical Garden of Suzhou D: Peking Man Site at Zhoukoudian

​The Four Great Ancient Chinese Grottoes includes‌ A: Mogao Grottoes in Dunhuang Guansu Province (甘肃敦煌莫高窟） B: Maijishan Grottoes in Tianshui Gansu Province（甘肃天水麦积山石窟） C: Yungang Grottoes in Datong Shanxi Province（山西大同云冈石窟） D: Longmen Grottoes in Luoyang Henan Province（河南洛阳龙门石窟）