The old man, together with his neighbors, _____ the performance

The old man, together with his neighbors, _____ the performance when it began to rain.
A、have enjoyed
B、has enjoyed
C、was enjoying
D、were enjoying
【正确答案】：C
【题目解析】：考查主谓一致和动词的时态。句意：开始下雨时，那个老人和他的邻居正在欣赏表演。当主语后跟有介词短语together with时，谓语动词的数与介词短语前的主语一致。此处谓语动词的数应与the old man一致，应为单数，且此处表示过去正在进行的动作，应用过去进行时。故选C。