阿摩線上測驗
20. Choose the correct sentence.
(A) The security system will complete by next month.
(B) The security system will have completed by next month.
(C) The security system will have been completed by next month.
(D) The security system will have been completing by next month.
答案：登入後查看
統計： A(1), B(0), C(5), D(0), E(0) #3351687
統計： A(1), B(0), C(5), D(0), E(0) #3351687
