There was a look on his face when he met with the problem.A. confusing；confusingB. confuse

There was a look on his face when he met with the problem.
A. confusing；confusing
B. confused；confused
C. confusing；confused
D. confused；confusing

A. confusing；confusingB. confused；confusedC. confusing；confused(答案→)D. confused；confusing解析：句意：当他碰到令他困惑的问题时，脸上就会有一种困惑的表情。1）-ed 形容词通常直接用于说明人，若修饰事物，则多为 air(神态), appearance(外貌), cry(哭声), face(表情), voice(声音), mood(情绪), 等显示某人的情感状况的名词。2. 以后缀 -ing 结尾的形容词(如delighting, exciting, frightening, interesting, moving, surprising, worrying 等)主要用于说明事物，表示事物的性质或特征，若用它们说明人，则表示此人具有此性质或特征。如：The man is very interesting. 这个人很有趣。由句意和这类形容词的用法可知选D。

好好学习下