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    I believe Shackleton this unexpected end to his expedition, but he did not waste time on regrets. A. must have mourned B. must mourn C. can have mourned D. could mourn 【查看更多】

     

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    I believe Shackleton           this unexpected end to his expedition, but he did not waste time on regrets.

    A．must have mourned                                    B．must mourn

    C．can have mourned                                      D．could mourn

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