25. None of the ship's papers _________. All of them are valid.
(A) has broken
(B) has expired
(C) has torn pages
(D) has been wet
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統計: A(18), B(178), C(19), D(26), E(0) #3009046
統計: A(18), B(178), C(19), D(26), E(0) #3009046