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(9), B(10), C(32), D(7), E(0) #3929881
統計: A(9), B(10), C(32), D(7), E(0) #3929881