◎ 题干
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
— Oh, dear! She _____ a lot of difficulties!
[     ]
A. may go through
B. might go through
C. ought to have gone through
D. must have gone through
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“— The woman biologist stayed in Africa studying wild animals for 13 years before she returned. — Oh, dear! She _____ a lot of difficulties! [ ]A. may go throug…”主要考查了你对  【情态动词】【现在完成时】  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。