9. Following the traffic rules _____ important while driving.(A) are (B) is (C) has (D) have

問題詳情

9. Following the traffic rules _____ important while driving.
(A) are
(B) is
(C) has
(D) have

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