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Ifoundasetof   intheclassroom.A.key                   B...

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问题详情:

Ifoundasetof   intheclassroom.A.key                   B...

I found a set of   in the classroom.

A. key                     B. keys              C. a key                       D. an key

【回答】

B

知识点:名词

题型:选择题