◎ 题干
Walking alone in the quiet town, Helen thought she _____ have invited John to enjoy the peace together.
[     ]
A. can't
B. needn't
C. should
D. might
◎ 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“Walking alone in the quiet town, Helen thought she _____ have invited John to enjoy the peace together. [ ]A. can'tB. needn't C. shouldD. might…”主要考查了你对  【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。