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    Don’t promise anything you are one hundred percent sure. A. if B. after C. in case D. unless 【查看更多】

     

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    . Don’t promise anything _____ you are one hundred percent sure.

       A. if                            B. after                     C. in case                D. unless 

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    Don’t promise anything _____ you are one hundred percent sure.

       A. if                            B. after                     C. in case                D. unless

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