跟卡卡逆袭高考英语:语法填空&改错常考句型:形式主语 it 句型 1.It +be+adj+that (whether等)...2.It +be+n.+that ... 3.It +be+过去分词.+that ... 4.It seems/seemed that ... 似乎... It happens/happened that...碰巧...