問題詳情

【題組】23. By the time I got to the bus stop, the bus ________.
(A)had been left
(B)had left
(C)has left
(D)has been left

參考答案

答案:B[無官方正解]
難度:適中0.428571
統計:A(6),B(6),C(0),D(1),E(0)