She listened with a expression on her face,which suggested she didn’t pletely understand.
A. puzzling
B. frightened
C. frightening
D. puzzled
网友回答
A. puzzling
B. frightened
C. frightening
(答案→)D. puzzled
解析：考查形容词。A令人不解的；B令人害怕的；C害怕的；D不解的。句意：她带着不解的表情听着，表明了她没有完全理解。