It's looks as if it is going to snow和It seems that ····分别是什么

It's looks as if it is going to snow和It seems that ····分别是什么 it looks as if it is going to rain It looks ___it is going to rain.A as if B like C as D that 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? It s-e- as if it is going to rain It seems as if it is going to rain中为什么要用个if It looks as if/as though it’s going to rain It looks as if it is going to rain.后面不该用was going 22.It seems as if it is going to rain,_____ the sky is dark.