問題詳情

26. In communication, a smile is usually ___________ strong sign of a friendly and _______ open attitude.
(A)the, /
(B)a, an
(C)a, /
(D)the, an

參考答案

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)