The question was so ________ that there was a ________ expression on the teacher's face.

A. puzzled; puzzling B. puzzled; puzzled

C. puzzling; puzzled D. puzzling; puzzling

 

C

【解析】

試題分析：考查形容詞。Puzzled困惑的，不解的; puzzling令人困惑的。句意：問題是如此的令人不解，以至于在老師的臉上帶著一副困惑的表情。故C正確。

考點(diǎn)：考查形容詞

 

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