問題詳情
28. By the time Ted arrived at the airport, the plane ____ .
(A) was taking off
(B) took off
(C) had taken off
(D) had been taken off
參考答案
答案：C
難度：適中0.666667
統計：A(1),B(0),C(4),D(1),E(0)
用户評論
【用戶】joanne1994042
【年級】高三下
【評論內容】by the time 現在式， would have pp 過去式，had pp