問題詳情

7. Before she was elected president of the club, Mrs. Chen ______ as an accountantin the club for ten years.
(A) serves
(B) will serve
(C) had served
(D) has served

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)