Look at the dark clouds!There should be a heavy rain in on t

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Look at the dark clouds!There should be a heavy rain in on time.
Look at the dark clouds!There____ be a heavy rain in on time.
A.shall B.can C.need D.should
为什么选D.
那A为什么不选?

shall的主语一般是 I和we,第一人称的代词 ,经常用于Shall we……?表建议；I shall……表示自己要做某事的意愿.can 能 need 需要 should 应该在这里表示判断应该选D

Look at the dark clouds!There should be a heavy rain in on t look at these black clouds--there ___ be a heavy rain 1、Look at the dark clouds in the sky.It's going to rain a sh Look at the dark clouds .There （）（be）a storm 动词填空. look at the clouds.There____(be)a rain Look at the dark clouds.It ___ rain Look at the dark clouds!It_______(rain)原因. look,there are so many dark clouds in the sky.it_______(rain 1.Look!There are dark clouds in the sky.It's I______ to rain Look at the dark clouds Look t the clouds.There_____a heavy rain.A.is going to have It __ rain for there are no dark clouds in the skies.A.would