Theremustbe______bookwhichcouldhe

发布时间：2020-07-12 14:13:23

There must be ______ book which could helpA.someB.anyC.oneD.one useful

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A解析some除了用作数量词外，还可用来泛指未知的人或事物。又如：There must besome reason for what he has done . (他所做的事肯定基于某种原因。)
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