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    My teacher a paper on how to protect the students'eyesight last week, but I don't know whether she has finished it or not. A. has written B. wrote C. had written D. was writing 【查看更多】

     

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    My teacher        a paper on how to protect the students’ eyesight last week，but I don’t know whether she has finished it or not.  

    A. has written    B. wrote    C. had written     D. was writing  

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