By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, appeared a rare rainbow soon.
A. of which
B. on which
C. from which
D. above which
网友回答
A. of which
B. on which
C. from which
(答案→)D. above which
解析：考查非限制性定语从句中介词的搭配。一道罕见的彩虹出现在Mount Qomolangma的上方。appeared a rare rainbow为倒装形式。