Professor Smith, along with his assistants, _______ on the project day and night to meet the deadline.
A. work B. working C. is working D. are working
Professor Smith, along with his assistants, _______ on the project day and night to meet the deadline.
A. work B. working C. is working D. are working
C
现现在进行时可以表示目前这一阶段下在进行的动作。句意：史密斯教授和他的助手们为了如戎完成这一项目，一直在夜以继日地工作着。由此可排除A、B项。“A ,with/along with /together with/but B”作主语时，谓语动词与A保持一致，故C项正确。