It is not rain还是It isnot rain

It is not rain还是It isnot rain It is -----------(rain)tody. IT IS _____(RAIN) RAINY 还是RAINNING It __(not rain)tomorrow it going to rain还是it我it will rain it often-------( rain) in spring here.but it------ (not rain It is （ ）rain It is often( ) rain It is not (rain;raining)·二选一,并说出原因. It is so______ (rain)today It is often ____(rain). [英语]It's going to rain还是It will rain? it must rain 与 it is going to rain 区别