The students were ____ over the ____ problem, listening to the teacher with a ____ expression on their faces.

A. puzzled; puzzling; puzzling                    B. puzzled; puzzling; puzzled

C. puzzling; puzzling; puzzled                    D. puzzling; puzzled; puzzling

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科目：高中英語 來源： 題型：

On the street I saw a studen _____ I thought was English.

　 A. whom 　 B. who

　 C. the one 　 D. he

 

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