The crowd cheered wildy at the sight of Liu Xiang,
问题描述：
The crowd cheered wildy at the sight of Liu Xiang,
who was reported ____the world record in the 110-meter hurdle race.
A.breaking B.having broken
C.to have broken C.to break
答
选c
群众欢呼那是刘翔破了纪录之后,所以破纪录是完成时；reported to do,所以是to have broken the world record