-He sighed again and the failure in physics seemed to have pletely his confidence.
A. injured
B. ruined
C. attacked
D. damaged
网友回答
A. injured
(答案→)B. ruined
C. attacked
D. damaged
解析：动词辨析。A受伤（事故中）；B毁掉（无法修复同destroy）；C攻击；D破坏（可以修复）句意：他叹了一口气，似乎物理考试不及格已经完全毁掉了他的信心。根据句意说明B正确。