Thedarkcloudsaregathering.It________.Whichofthefollowingcannotbeusedin

发布时间:2020-08-04 21:36:31

The dark clouds are gathering.It ________.Which of the following cannot be used in the sentence?A.is going to rainB.is about to rainC.will rainD.is to rain

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D解析be to do表示按计划安排,将要发生的动作,语气较为正式。而这句句子的意思是“就快要下雨了”,显然这不可能是事先安排好的。那么
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