My friends, after they heard what had happened to me, said it sounded like an adventure.
A. all
B. that
C. which
D. who
网友回答
(答案→)A. all
B. that
C. which
D. who
解析：此题可采用减元法，把after they heard what had happened to me 去掉，就非常容易地看出此题不是定语从句，all用来说明“我所有的朋友”，故选A。