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9、一This returned Chinese scholar has become one of the top experts in this field.

―Yes，I know him very well ,He      in Africa with animals for ten years．

    A has worked        B、had worked      C．has been working     D．worked

9、D

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科目：高中英語(yǔ) 來(lái)源： 題型：

一This returned Chinese scholar has become one of the top experts in this field.

―Yes，I know him very well ,He      in Africa with animals for ten years．

    A has worked        B、had worked      C．has been working     D．worked

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科目：高中英語(yǔ) 來(lái)源： 題型：

一This returned Chinese scholar has become one of the top experts in this field.

—Yes,I know him very well , he　　 in Africa with animals for ten years.

A. has worked　　　 B、had worked 　C.has been working　　 D.worked

 

查看答案和解析>>