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

问题补充：

There was a look on his face when he met with theproblem.

A. confusing；confusing

B. confused；confused

C. confusing；confused

D. confused；confusing

答案：

A. confusing；confusing

B. confused；confused

C. confusing；confused

(答案→)D. confused；confusing

解析：本题考查形容词。Confusing令人困惑的；confused困惑的。句意：当他遇到这个令人困惑的问题时候，他脸上露出了困惑的表情。