6. The after-service department in this company is always ____ in replying to customers’ requests, which
has helped earn many compliments.
(A)prompt
(B)unlawful
(C)intriguing
(D)doomed
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統計: A(54), B(2), C(18), D(1), E(0) #2379253
統計: A(54), B(2), C(18), D(1), E(0) #2379253