it seems that的句型中的it是什么成分

it seems that的句型中的it是什么成分 it seems that句型转换的问题 有没有It seems to do 的句型?还是 it seems that 求解!关于英语句型It seems that 请问这个句型it seems +adj + that 句型"It seems," 和"It appears that,"有何异同? it seems that 的用法 it seems that的用法 it seems that time go faster.that time go faster是什么成分 it seems that和it seems as if的区别是什么? it seems that 和 it seems as if的区别 it seems as if 和it seems that的区别