问题补充：
The blame for this accidentthe man who destroyed the signal.
A. was laid
B. was attached to
C. attached to
D. was put
答案：
A. was laid
B. was attached to
(答案→)C. attached to
D. was put
解析：本题题意为“事故责任在破坏信号的人身上”。A、D项缺少介词，was attached to 表示“喜欢，依恋，对……有感情”，不合题意。attach to意为“在……身上”。
