The manager __________the workers how to

昕玥2019-12-17  23

问题 The manager __________the workers how to improve the program since 9 a.m.

选项 A.has toldB.is tellingC.has been tellingD.will have told

答案C

解析句意为从上午九点开始,经理在一直不停地告诫工人如何去完善这个项目。由时间状语since。9 a.m.可先排除B和D;根据句意,此处需要的是“一直不停地告诫”,强调持续性,应用完成进行时,故答案为C。
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