◎ 题干
Sally ______ dinner when I came back.
[     ]
A. were having
B. was doing
C. was having
D. were doing
◎ 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“Sally ______ dinner when I came back.[ ]A. were having B. was doing C. was havingD. were doing …”主要考查了你对  【实义动词】【主谓一致】  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。