if it seems that everthing is lost,i will smile and never count the cost,ifIf it seems that everthing is lost,I will smile and never count the cost,if you love me really loveme,let it happen darling i wont't care shall i catcha shooting star,shall i

it seems that和it seems as if的区别? It seems that 和It seems as if区别 it seems as if 和it seems that的区别 it seems that和it seems as if的区别是什么? ____ he knew nothing about her.A.It seems that B.It seems as if it seems that 和 as if 有什么不同? It seems that it seems that 用法 it seems that 和 it seems as if的区别It seems that it is going to rain 和It seems as if it is going to rain 有什么区别吗? it seems that 的用法 it seems that的用法 it seems that等于什么? It seems to us that It ______ that Mary has given up _____. A.looks as if ,smoking B.seems ,smoking It seems that 和 It seems as if中的是形式主语吧?真正的主语呢?逻辑主语呢?（请详细一点, 请问这几句什么关系?there seems to be ,it seems that,it seems to be, It seems that/as if在什么时候可以省略不要意思,我要的 是什么时候可省略, She has read so many books that it seems as if everything she knew,为什么用knew而不用knows!