The man is a serious nervous breakdown because he is unable to deal with pressure from daily life.
A. in front of
B. in favor of
C. on behalf of
D. on the edge of
网友回答
A. in front of
B. in favor of
C. on behalf of
(答案→)D. on the edge of
解析：词义辨析。A在…前面；B支持；C代表；D在…边缘；句意：这个人处于崩溃的边缘，因为他不能处理日常工作的压力。根据句意说明D正确。