問題詳情

114. We only give discounts of more than 20% to customers with whom we have ______a good, long-term trading relationship.
(A) set off
(B) set for
(C) set off
(D) set up

參考答案

答案：D
難度：適中0.59375
統計：A(3),B(6),C(0),D(19),E(0)