問題詳情

【題組】15. Recently, the negotiators representing six different countries have made considerable ______ in their discussion about border issues.
(A) structure
(B) route
(C) progress
(D) arrogance

參考答案

答案：C[無官方正解]
難度：適中0.5
統計：A(1),B(1),C(3),D(0),E(0)