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    ( ) They in a factory now, but they there a year ago. A. works; not worked B. work; didn't work C. works; isn't working D. is working; works 【查看更多】

     

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    They _____ in a factory now, but they _____ there a year ago.
    [     ]
    A. works; not worked
    B. work; didn't work
    C. works; isn't working
    D. is working; works

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