成人高考◆高起点◆英语題庫下載題庫

上一題
18. All books are________ to the library before Friday.
(A) returned
(B) to be returned
(C) to have returned
(D) to return


答案:B
難度: 計算中

18. All books are________ to the library..-阿摩線上測驗