15. The competition has to be postponed ____ some problems with the rules, which may still have to be revised.
(A) in spite of
(B) on account of
(C) regardless of
(D) other than
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統計: A(91), B(324), C(78), D(26), E(0) #2068644
統計: A(91), B(324), C(78), D(26), E(0) #2068644
