【题目】—Have you finished reading The Adventures of Tom Sawyer?
—No, I my diploma paper all day yesterday.
A. write B. had written
C. was writing D. would write
在线课程【答案】C
【解析】选C。考查时态。句意: ——你读完《汤姆·索亚历险记》了吗?——还没有, 昨天我一整天都在写我的毕业论文。表达一段时间内持续进行且未完成的动作, 需要用进行时态, 题干中有all day yesterday提示为过去时间, 故C项正确。其他时态均不符合句意。