What a pity! You should have urged him to hand in his English homeworkI ________．But he wouldn't listen to me．A.have doneB.didC.had doneD.do
网友回答
B解析在上下语境中考查时态。should have done表示“过去要做而没有做”，舍有“责备”之意。在下一句中表示“我过去敦促了他”，因此用“过去时”。代替上次出现的一个谓语动词用代动词替换。在此，did=urged．