問題詳情

31 Derek was caught stealing money at school; the principal told him that he was not allowed to go back toschool _____his behavior improved.
(A)since
(B)only if
(C)until
(D)provided that

參考答案

答案：C
難度：簡單0.803301
統計：A(34),B(62),C(584),D(30),E(0)

用户評論

【林小朱】評論

since---自從....以來