◎ 题干
- Why didn't you arrive there until three days later?  
- Because the heavy rain _____ the difficulties of the journey.
[     ]
A. added
B. added to
C. was added
D. was added to
◎ 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“—Why didn't you arrive there until three days later? —Because the heavy rain _____ the difficulties of the journey. [ ]A. added B. added to C. was added D.…”主要考查了你对  【动词短语】【一般过去时】  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。