◎ 题干
We didn't know _______, so we gave it to the police.

[     ]

A. whose wallet it is
B. whose wallet was it
C. whose wallet is it
D. whose wallet it was
◎ 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“We didn't know _____, so we gave it to the police. [ ]A. whose wallet it is B. whose wallet was it C. whose wallet is it D. whose wallet it was …”主要考查了你对  【一般过去时】【宾语从句】  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。