15. I apologize if I ______ you, but I assure you it was unintentional.
(A) offend
(B) had offended
(C) should have offended
(D) might have offended
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統計: A(0), B(0), C(0), D(1), E(0) #3354192
統計: A(0), B(0), C(0), D(1), E(0) #3354192