20. We don't mind who does it ____ it is done.
(A) so far as
(B) so long as
(C) as well as
(D) for all that
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統計: A(51), B(288), C(121), D(74), E(0) #2166386
統計: A(51), B(288), C(121), D(74), E(0) #2166386