【题目】— Have you seen the cell phone I left here just now?
— No, sir. I _______ my English composition.
A. was polishing B. had polished
C. would polish D. have polished
在线课程【答案】A
【解析】
考查时态。句意：——你看到我刚才落在这里的手机了吗?——没有，先生。我正在修改我的英语作文。表示过去的某一段时间内正在发生或进行的动作，用过去进行时，故选A。