問題詳情

【題組】21.There is a(n) ____ change of the plan. We are not going to the zoo this Sunday.
(A)social
(B)equal
(C)usual
(D)sudden

參考答案

答案:D[無官方正解]
難度:適中0.5
統計:A(1),B(0),C(1),D(2),E(0)