It is believed that on December 21st, 1891, the first basketball game in histry was played.
问题描述：
It is believed that on December 21st, 1891, the first basketball game in histry was played.
It is believed that 是固定用法吗
答
据说,在1892年12月21日,历史上的第一场篮球比赛开始了.It is believed中的it是形式主语,真正的主语是后面的主语从句that on December 21st,1891,the first basketball game in history was played.这样写的原因是主...