【题目】—Are we about to have dinner?
—Yes, it ________ in the dining room.
A. serves B. is serving C. is being served D. has been serving
在线课程【答案】C
【解析】考查时态。因serve与it(dinner)是动宾关系，要用被动语态；由问句中的are about to(即将) have dinner和答语Yes可知，已“在”供应dinner了，故用现在进行时的被动语态。故选C。