问题
选择题
China’s winning the host of the Olympic was an exciting moment, ______ all Chinese will never forget.
A．that
B．it
C．one
D．what
答案
答案：C
用one作an exciting moment的同位语，同时又是后面定语从句的先行词，从句all Chinese will never forget后缺少宾语，应用关系代词，one后面省略了which /that，所以选C。