問題詳情

30. If we _______ adequate preparations, the conference wouldn‟t have been so successful.
(A)haven‟t made
(B)wouldn‟t make
(C)didn‟t make
(D)hadn‟t made

參考答案

答案：D
難度：非常困難0
統計：A(0),B(1),C(0),D(0),E(0)