問題詳情
27. You must be superior to me in this field, because you ________ here for over ten years and have greatreputation among our clients.
(A) were working
(B) had worked
(C)had been working
(D) have been working
參考答案
答案：D
難度：適中0.64467
統計：A(4),B(24),C(32),D(127),E(0)