◎ 题干
When ______ you supposed to arrive yesterday?
[     ]
A. are
B. was
C. were
D. is
◎ 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“When ______ you supposed to arrive yesterday? [ ]A. are B. was C. were D. is …”主要考查了你对  【系动词】  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。