-What’s wrong with him?
--The picture he came across his memory of a sad story in his childhood.
A. set off
B. took off
C. gave off
D. put off
网友回答
(答案→)A. set off
B. took off
C. gave off
D. put off
解析：短语辨析。 A.出发；引起 B.脱下 C.释放 D.推迟。句意：他怎么了？他遇到的照片引起了他记忆中的童年的一段伤心地故事。故选A。