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    He a number of books about the subject in the library before he gave his speech. A. referred B.looked into sulted D.looked up 【查看更多】

     

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     He _______ a number of books about the subject in the library before he gave his speech.

    A. referred                                                              B. looked into

    C. consulted                                                    D. looked up

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    He ________ a number of books about the subject in the library before he gave his speech．


    1. A.
      referred
    2. B.
      looked into
    3. C.
      consulted
    4. D.
      looked up

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    He ______a number of books about the subject in the library before he gave his speech.

    　 A. referred　　　　　 B.looked into　　 C.consulted　　　　 D.looked up

     

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    He ________ a number of books about the subject in the library before he gave his speech．

    [　　]

    A．referred

    B．looked into

    C．consulted

    D．looked up

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