16. The representatives from both countries ________ and finally reached an agreement on fair trade.
(A) commuted
(B) hesitated
(C) negotiated
(D) suppressed
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統計: A(6), B(7), C(22), D(6), E(0) #3929881
統計: A(6), B(7), C(22), D(6), E(0) #3929881