it will be raining ,it will rain it's going to rain 哪个对,意思上有

it will be raining ,it will rain it's going to rain 哪个对,意思上有 it's going to rain.=it will rain. [英语]It's going to rain还是It will rain? It's going to rain和 It'll be raining It's going to (raining,rain) 其实It is going to rain 和it will be rain 有分别? it going to rain还是it我it will rain It (is going to/will) rain. it will rain和it's going to rain的区别 it's going to raining,为什么rain要加ING It will be rain 能不能改成it will rain It's going to ___tomorrow.A.rainy B.rain C.raining(选哪个）