—Yes, it ________ in the dining room.

A. serve B. is serving

C. is being served D. has been serving

【答案】C

【解析】考查时态和语态。句意：——我们准备去吃饭吗？——是的，饭菜正在餐厅被供应。it是指饭菜，和动作serve之间是被动关系，且动作正在进行，四个选项中只有C项是现在进行时的被动语态，故选C。