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

发布时间：2020-08-16 21:05:03

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

网友回答

A. puzzled；puzzling；puzzling
(答案→)B. puzzled；puzzling；puzzled
C. puzzling；puzzling；puzzled
D. puzzling；puzzled；puzzling
解析：形容词辨析。Puzzled感到困惑的,通常形容人；puzzling令人困惑的，通常形容事物；expression表情，它与人有关，所以仍然用puzzled修饰。句意：带着困惑的表情听老师讲课，学生们对于那个令人困惑的问题感觉很困惑。
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