---What’s wrong with him?--The picture he came acrosshis memory of a sad story in his c

问题补充：

---What’s wrong with him?

----The picture he came acrosshis memory of a sad story in his childhood.

A. put off

B. took off

C. set off

D. gave off

答案：

A. put off

B. took off

(答案→)C. set off

D. gave off

解析：考查固定词组，put off意思“脱掉”，took off意思“起飞”，set off意思“引起”，gave off意思“发出”，句子意思“他偶然发现的一幅画引起了他童年时代的伤心故事”