People like to eat sweet dumplings on the Eastern Festival，which in hot water．
A. were served
B. served
C. are served
D. serves
网友回答
A. were served
B. served
(答案→)C. are served
D. serves
解析：考查语态。本句中的which与动词serve构成被动的关系故使用C项。本句使用一般现在时指经常性习惯性的行为。故C正确。