Sooner or later, the old palace will get ruined if . A. being left unrepaired B. not left repaired C. left unrepaired D. having left unrepaired 查看更多

 

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 Sooner or later, the old palace will get ruined if ______.

A. being left unrepaired                                   B. not left repaired

C. left unrepaired                                     D. having left unrepaired

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