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     Today,we’ll discuss a number of cases ___ beginners of English fail to use the language properly.

    A.which                                 B.as

    C.why                                   D.where

     

    【答案】

     D

    解析：where引导定语从句，作case的定语，表示讨论了英语初学者不能适当使用英语的个案。which引导定语从句时，在从句指物，作主语、宾语或表语。as引导定语从句时，作主语、宾语或表语，意为“正如”。why引导定语从句时，其先行词是reason。

     

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