谁知道rain,rains,rainy,raining这4个词有啥区别啊?

谁知道rain,rains,rainy,raining这4个词有啥区别啊? 怎么使用rain,rains,rainy rain rains rainy 怎么用 rainy,rain,rains,raining的用法 rain,rainy,rains用法有什么不同? 求rain rainy rains 区别和用法. rain,rains与rainy的区别. rain raining rains rained rainy的区别和用法 什么时候用rain,什么时候用rains,有什么时候用rainy? Look at the _____!It's_____heavily now.A.rian;rains B.rain;raining C.rains;rainy D.rain;rains rain和rainyThere is usually____in summer in Yangzhou.A.rain B.rainy C.raining.D.rains It's rainy today.=It's ___ today.A.rains B.raining C.rain rain,rains,raining,rainy,rained的区别及用法（要详细的） rain,rains,rainy,raining和relax,relaxed,relaxes,relaxing的区别及用法请附带例句 It was ( )yesterday.So he stayed at home.A.rain B.rained C.rains D.rainy There is going to be ______ tomorrowA.raining B.rain C.rains D.rainy 详解, It was always______there.空格中填rain还是rainy还是 rains? rains,rain和rainy的区别和用法,是牛津小学英语6b第五课的!