◎ 题干
He ______ the job well, but he ______ so careless.

A. hadn't done ; had been
B. could have done ; was
C. could do ; was
D. had done ; had been
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“He ______ the job well, but he ______ so careless. [ ]A. hadn't done ; had beenB. could have done ; was C. could do ; was D. had done ; had been …”主要考查了你对  【一般过去时】【虚拟语气】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。