問題詳情

4. Long before they moved in, the couple____ the apartment.
(A)were cleaning
(B)had cleaned
(C)have cleaned
(D)may clean

參考答案

答案：B
難度：簡單0.714286
統計：A(0),B(5),C(0),D(0),E(0)

用户評論

【joanne1994042】評論

had pp 過去的過去 選過去完成式