◎ 题干

He was afraid what he had done ______ a disastrous effect on his career.
a. might have    b. could be    c. have been   d. shall be
◎ 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 was afraid what he had done ______ a disastrous effect on his career.a. might have b. could be c. have been d. shall be…”主要考查了你对  【虚拟语气】【情态动词】  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。